• Business Focus
  
• Artificer Subclass or Subclasses best suited.
  
• Tool Proficiencies needed.
  
• Helpful Infusions. I include these here because I believe that having a relevant infusion should count as the required schematics necessary to create a magic item. I also think that they should definitely look different than the standard fare that traditional enchanters sell.
  
• Business location.
  
• Primary focus of business. What you will be selling or offering to customers.
  
• Common or Uncommon Magic Items to supplement mundane sales when you hit level 10 and can make them in 1/4 the normal time and 1/2 the price of anyone else.
  
• Sidekicks you could use in the business.
  
• Other Party members who could help you besides the Forge Cleric, Bards, Rogues or any Spellcaster that knows *Fabricate*. You can Assume that the above classes are inferred good business partners for any of the jobs listed below. This guide will be focusing on those with Tool Proficiencies from Class, as anyone could grab a Guild Member background and be helpful as well.
  

Businesses

Wandsmith/Arcane Focus Maker

• Artillerist. This subclass lends itself well to a Wandslinger and the level 5 class features give a lot of attention to the Wand.
  
• Armor of Tools, Woodcarver's Tools, Jeweler's Kit, Glassblower's Kit. Woodcarving for Wands, Rods and Staves. Jeweler's for Wands, and Crystals. Glassblower's for Orbs.
  
• Enhanced Arcane Focus, Replicate Magic Items (any common wands or staves, Wand of Magic Detection, Wand of Secrets), Homunculus Servant, Replicate Magic Item (Wand Sheath). The Enhanced Arcane Focus should lend you to easily make decent wands and even Infused Wands. Replicating Magic Items for schematics for easy to make Common Magic items to upsell to customers. Homunculus Servant for extra help around the shop.
  
• Cart, Wagon, Boat, Shop. You could have 2-3 wands on hand in a cart, a covered wagon with carving tools set up or even a section of a ship dedicated to making and selling your wares. If applicable, you could even buy a permanent location to sell your wares, this will be your best bet for glassblowing, as your toolkit still requires you to find a suitable heat source to form liquid glass. Work your way up to being your own Gilmore's Glorious Goods, Invulnerable Vagrant, or Fantasy Costco.
  
• At this location, Wands, Rods, Staves, Crystals and Orbs will be your meat and potatoes. Basic Spellcasting Foci for any aspiring Wizard, Sorcerer or Warlock. You could even branch out into Holy Symbols, and Druidic Foci if the demand is there. While a basic Spellcasting Focus only needs to be between 5gp and 20gp. These are easily made in a single day of downtime crafting. You could even customize more expensive version of them for Nobles or highly opinionated casters to distinguish yourself from other magic shops.
  
• Common and Uncommon Wands and Staves. Mostly Imbued Wands or Orbs of Resistance. Wands of Magic Missile, Burning Hands, Ice Knife, Catapult would all fall under these categories. Could even make a Common Wand that requires attunement, and grants the attuned the ability to cast a single Cantrip (always at Level 1) as a Novice Wandslinging item. Scrolls could be re-flavored as single use wands.
  
• For Sidekicks, an Expert would be great to help you churn out mundane items, while a Spellcaster would help you keep a steady stream of lower end Magic Items available.
  
• Eldritch Knights and Tome Warlocks would make great business partners. Eldritch Knights would probably push you to sell Rubies of War Mages also, bringing in a new area of clientele and the ability to advertise through Weaponsmiths for when they have some adventurers come through.
  

PainteSculptoGeneral Artisan

• Any Artificer
  
• Armor of Tools, Painter's Kits, Calligrapher's Kit, Glassblowers Kit, Woodcarver's Kit, Mason's Tools. These cover the gambit of common medium to work with.
  
• Homunculus Servant. Most other Infusions are combat based, but a Homunculus is a nice extra set of hands(tentacles or claws?) to help pass you the right tool and to clean off your brushes.
  
• Can work from Cart, Wagon, Boat or Shop. You might want a combo of Wagon and Shop, with a mobile studio to get different landscapes and to collect different material and a shop for a gallery from which to sell things.
  
• Paintings, Sculptures, Wood Carvings, Reliefs and finer doo-dads will be your main stock. From carvings of monsters that you've fought, self-portraits of people you've met, landscapes of other planes, or just finely made custom Dragonchess sets with pieces that look like real people. You could even specialize in ship figureheads or shop signs for taverns or other businesses. If you can find a way to make a permanent Magical Tinkering effect of the static visual image, that's a nice storefront display right there.
  
• Illusion enchanted paintings for a Harry Potter style feel would be good magical items, or even Dragonchess sets that can move themselves.
  
• Experts will probably get more mileage for the tool proficiencies than the Spellcaster unless your Enchanted portraits become a real hot commodity.
  
• Kensei Monks and Battlemaster Fighters each get proficiency in a set of Artisan's Tools as a Class Feature. Monks get Calligrapher's kit, but Battlemasters get to pick their choice, so could easily be Painter's or Woodcarver's.
  

Crossbow Manufacturer

• Battlesmith, Artillerist
  
• Armor of Tools, Woodcarver's Tools, Tinker's Tools, Smithing Tools, Carpenter's Tools. You will be mostly working with Wood and steel. Woodcarver's Tools lets you make 20 arrows as part of a Long Rest per Xanathar's.
  
• Repeating Shot, Quiver of Energy, Enhanced Weapon, Homunculus Servant. Enhanced Weapon for a reason to be able to make +1 crossbows. Quiver of Energy might be useful for some arrows that add a bit of elemental damage to a shot, even if only +1 fire or lightning.
  
• You can run a smaller shop out of a cart or wagon and be mostly custom orders, or you can have a fixed shot with dozens of different styles ready for sale and enchantment services on request.
  
• Hand, Light and Heavy crossbows as well as arrows and bolts will be your primary trade. You can also Silver arrows and bolts and filigree the crap out of some crossbows if people are interested in flaunting their status that way. Pretty straight forward with these mundane items.
  
• Walloping Ammunition, Unbreakable Arrows, Elemental Burst Arrows and Quivers of Ehlonna will be easy sources of magical flare in your shop.
  
• Experts will be your main shopkeepers and re-stockers. Warriors if you want someone to do demonstrations.
  
• Rangers, Arcane Archer Fighters, Kensei Monks will make excellent business partners. The Ranger especially brings a host of appropriate spells for later game enchanting. The Kensei will probably focus on more "traditional" Bows, which can help expand your clientele.
  

Potion Brewer

• Alchemist
  
• Brewer's Kit, Alchemist Supplies, Herbalism Kit, Poisoner's Kit. It is called out in Xanathar's Guide that an Herbalism Kit is required to make Healing Potions. So that's something you're definitely invest in. Also, in Xanathar's for .5lbs and 25gp of material, you can make one Alchemist Fire as part of a Long Rest with an Alchemist Supply Kit. That's not even counting what you can make during the day as Downtime. Stock up before you leave the city and you can make yourself one firebomb a night!
  
• Healing Salve and Homunculus Servant. Healing Salve is basically a 4 use touch range Healing Word you can make. This would be a great basis for Keoghtom's Ointment. I also feel like at this point I don't need to explain why Homunculus Servant keeps appearing on these lists.
  
• You could run this out of a cart or wagon, but i'd be worried about all those Alchemist Fire supplies rattling around. Same with a boat, unless you're just a Riverboat. A physical Shop would be best for what you need, although a cart/wagon for traveling with already made merchandise is a nice way to spread the brand name and to gather exotic or non-local supplies.
  
• Healing Potions! You are the local healer. You will also probably have on hand a good number of natural remedies for people who can't afford a constant stream of Healing Potions and instead use the Medicine Skill Proficiency to treat wounds. You can also make a single item of either Alchemist Fire, Acid, Antitoxin, perfume or soap as part of a Long Rest with an Alchemist's kit, so you can have a varied catalogue. makes sense to me that Sunrods (fantasy glow sticks) would be something you'd make with Alchemist's Supplies. You could even dip into Poison's, that wouldn't be advertised of course, but would include a bit of a premium on their sale for those in the need of such a thing.
  
• As you level up you can more easily make Potions of: Greater Healing, Fire Breath, Hill Giant Strength, Resistance and Water Breathing. You can also easily make an Alchemy Jug, which can make you day to day operations even cheaper as you can simply have the jug produce some of the more mundane liquids you may sell. The Decanter of Endless Water is also a must have item and too easy of a sale to anyone adventuring near or into a desert. Keoghtom's Ointment is also a nice Emergency Medicine that you could sell to a local Hospital or Militia.
  
• Expert's are your best bet at brewing basic potions for you and keeping the mundane supplies stocked. A Spellcaster would be able to expand your inventory with Climbing Potions, Beads of Nourishment, Beads of Refreshment, Candle's of the Deep, Perfume of Bewitching and Tankard's of Sobriety.
  
• Druids, Eldritch Knights, Monks and Rangers would be good partners as they can easily get Nature and Medicine proficiencies for a good number of the items that you make.
  

Tavern Owner

• Any Artificer, but strong lean to Alchemist due to class flavor.
  
• Brewer's Kit, Carpenter's Kit, Cook's Utensils, Alchemist Supplies, Herbalism Kit, Glassblowing Kit. The Brewer's Supplies should be obvious, but outside of the business, you can Purify1 gallon of Water over a Short Rest and 6 Gallons over a Long rest, a handy skill to have if you aren't near someplace with Fresh Water, like the open ocean. The Cook's Utensils are also a given with a Tavern, but outside of combat they allow a creature to regain 1 extra HP per Hit Dice they spend on a Short Rest. That may not sound like much, but it effectively makes each Hit Dice one higher on average (1d6+1 has the same average as 1d8). The Carpenter's Tools are so that you can fix all the furniture that will break during the inevitable bar fights. The Alchemist Supplies are actually for embalming creatures you encounter so you can have that Mindflayer Taxidermized as a display item in your bar! That's a feature I don't think any other local bar will have. Herbalism Kit is for working with hops, or branching into a bit of Potion Making if you want. Glassblowing is for you to make your own signature glassware that you can serve with the expensive drinks and offer as souvenirs.
  
• Homunculous Servant, Replicate Magic Item (Tankard of Sobriety). Tankard's of Sobriety seem like the perfect item for a bartender or bar owner. You can drink as much as you want but still stay sober. Might not be as much fun as regular drinking, but good for keeping your head about you and one hell of an advantage in a drinking contest.
  
• You could run this out of a Cart or Wagon as a kind of portable bar for just drinks. If you got a decent sized ship you could even expand it to a casino boat. However, a physical shop is the best choice here, specially if you plan to expand it to housing several rooms. Location is also key here, so make sure you spend some downtime doing some Investigation, Insight and History checks to learn all you can about potential locations you might set up.
  
• Beers, Wines, and Spirits of all kinds, with tasty food to boot! This is the stereotypical D&D Player business. There's an entire chapter of Waterdeep: Dragon Heist dedicated to setting up and running a tavern if you want inspiration. Feel free to include specials following your adventures of meat from creatures you've slain! Hydra-Burgers should be tasty.
  
• Mostly Wands of Prestidigitation and Decanter's of Endless Water for cleaning the bar and Alchemy Jugs for an easier way to produce cheap beer and wine with basically no overhead costs. Dust of Dryness might be nice to have on hand for cleaning up spills as well. Oh, and don't forget to keep a Wand of Magic Missiles behind the bar for those rowdy patrons.
  
• Spellcasters might make the best brewmasters of the sidekicks due to their increased Mental Stats. They can also help out with cleaning, and if they get to a point where they can Detect Poison and Disease, that would be a huge help come Health Inspection time. Experts will make good Brewers and can step up behind the bar to help out with their wide range of proficiencies. Warriors are good Bouncers and a way to take care of those pesky Dire Rats in the cellar.
  
• Way of the Drunken Fist Monks will either be a godsend or a curse for you as a business partner. Other Monks and Rangers would make a good partner as their naturally high Wisdom scores would help with Insight and Perception to keep an eye on patrons and employees. And no one is better in a bare knuckle brawl than a Monk, you could even put a fighting pit in your tavern if you want that kind of atmosphere, but I'd be sure to have a place to check weapons at the door so fights don't escalate too much outside of the fighting pit. Barbarians and Fighters have the CON to put down the drinks for Taste Testing and still being able to be a Bouncer. Beastmaster's can use their companion as a novelty server or even tavern mascot. And while I said I wouldn't include them on the list, I just have to say that any Bard would go here wonderfully.
  

Weaponsmith

• Battlesmith (It's in the name)
  
• Smithing Kit, Alchemist Supplies, Leather Working, Jeweler's Kit, Woodcarving Kit. The Smithing Kit and Woodcarving kit should be obvious as 95% of the weapons are made from metal or wood. The Leather Working Kit is for grips and wraps on the handles of weapons. Jeweler's Kit is for making fancy versions of weapons. Alchemist Supplies is for Silvering Weapons or using chemicals to stain the metal other colors.
  
• Homunculus Servant, Armor of Tools, Enhanced Weapon, Returning Weapon, Radiant Weapon, Replicate Magic Item (Moon-Touched Sword), Replicate Magic Item (Armblade). I think both the Radiant Weapon and Moon-Touched Sword Infusions would be good enough to count for the schematics to make Moon-Touched Swords for you. Enhanced Weapon for a basic +1 weapon.
  
• You need a forge for these, and that means that Carts and Wagons are only good for transporting completed merchandise to sell. The sheer weight needed for your forge makes a boat out of the question. Like the tavern, a physical location is the best bet for you.
  
• Anything that isn't a strictly ranged weapon is your stock and trade here. The most expensive mundane melee weapon is the Greatsword at 50gp. That means it will take you a full day (25gp) to make a single one. All other weapons can be made in a few hours. You'll also want to have some farming supplies and tools on hand in order to maximize your customer base. Hoes, pick axes, crowbars, buckets, barrels, Caltrops, Ball Bearings, metal religious symbols etc. Silvering Weapons and adding gold/silveelectrum/gemstone decorations to mundane items are a great way to offer wares to richer customers. Yes, Lord Grantham ir'Lupiloo has a fine rapier, but he doesn't have a rapier made of Bulette-scale Damascus steel, with a hydra skin wrapped pommel and his name engraved in gold embossed Draconic along the crossguard. That's how you make a name for yourself, because Lord Brendit ir'Flaglap is going to HAVE to have a nicer Longsword than that cur for next week's gala.
  
• Moon-Touched Blades, Weapons of Warning, +1 Weapons and a weapon with a single minor property from the table on page 143 in the DMG will be the easiest and fastest for you to replicate.
  
• The Expert and Warrior will be best for if you want mundane items being churned out of your forge. The Spellcaster would be a better hire if you want to focus on enchanted items. The difference in what you will be able to do will be based on your location. Rural areas will focus on mundane most likely, while cities will have more demand and client base for fancy mundane and enchanted.
  
• Fighters, Barbarians, Monks, Paladins and Blade Pact Warlocks would do great here as partners.
  

ClothieArmorer

• Armorer, Battlesmith
  
• Smithing Kit, Leatherworking, Weaver's Tools, Cobbler's Tools, Alchemist Supplies. SMithing and Leatherworking are straightforward. Weavers is for non-armor clothing if you want to instead open up a clothing boutique. Cobbler's tools for if you want to make shoes. Fun fact, with Cobbler's Tools you can spend a Long Rest to add in a 3" by 1" hidden compartment into a pair of shoes or boots.
  
• Homunculus Servant, Enhanced Armor, Reflecting Shield, Boots of the Winding Path, Armor of Absorption, Armor of Tools.
  
• You could do a clothing store, shoe repair and custom designing, make and sell leather armor, custom tailoring or a dry-cleaning business (Prestidigitation + Mending) out of a cart, wagon or boat, but for the same reasons as with a weaponsmith you need a physical location if you want to make metal armor. Make it work, people!
  
• Congratulations, you are now you party Rogue's favorite person and source of disguises. You'll have to decide the breadth and scope of just what kind of business you want to run first. Focus on just mundane clothing for commoners to nobles, or do a combination of common clothing and simple armors. Metal armors and shields will require a forge. If you are able to build yourself up, you could eventually do everything out of a large building with a little bit of everything like your own fantasy Macy's. One storefront for expensive dresses, gowns and suits. Next door is more common or work wear, and out back is the forge with protective armors, leathers and shields. This would be a nice way to ensure that all your armor pieces match, because nothing is worse than finding a great piece of new armor that just completely clashes with your personal aesthetic. This also to me just seems like a great way to play a Garrak like character. (If you don't know who that is, please see yourself over to Netflix or CBS All Access and watch all of Deep Space 9 as soon as possible.)
  
• Cloaks of Defense, Cloaks of Many Fashions, Cloaks of Billowing, Cloaks of Elvenkind, Cloaks of the Manta Ray, Sentinel Shields, Robes of Useful Items, Brooches of Shielding, Cast off Armor, Boots of Elvenkind, Gleaming Armor, Boots of the Winterlands, Winged Boots....there are so many thematic Common and Uncommon Magic Items for you to make here.
  
• Experts will be your go to for mundane sewing, forging and cobbling. Spellcasters if your enchanting business takes off and can run the Dry-cleaning aspect while you're gone.
  
• Rangers, Monks and Arcane Archers will do well here are they tend to favor DEX and WIS. Also, if you do end up going into a clothing business with a rogue and you don't name it "Cloak and Dagger" then I think you actually lose a Character Level.
  

Shipwright

• Any, but Battlesmiths and Armorers might do best as they would tend to have higher STR.
  
• Armor of Tools, Carpenter's Tools, Woodworking Tools, Smithing Tools, Navigation Tools. You're mostly going to be working with wood here, and a bit of metal also. Navigation Tools just seems like a good choice, unless you want the RP of being a master of building ships, and then being completely unable to use or navigate in them.
  
• Homunculus Servant, Replicate Magic Items (Cap of Water Breathing, Ring of Water Walking, Cloak of the Manta Ray). The Magic Items that you can replicate allow you to fully inspect or repair any ship while it is in the water.
  
• You're going to want a shop. Located next to a large body of water. And depending on the size of the ships you intend to build, it should also be connected to an ocean eventually. You could theoretically have this business from a boat, if you make a large enough ship that you could pull alongside other ships to repair them, but I think you're best off with a permanent location.
  
• As a Shipwright, you make ships! Boats, galleys, rowboats and everything in between. You'll want to start off with smaller boats first to build up your money until you can invest in making a large ship. According to the DMG, a Rowboat costs 50gp to make, a Keelboat costs 3,000gp a Sailing Ship or Longship costs 10,000gp and a Galley costs 30,000gp. Other than Rowboats, which you can make in a single day, these are going to be very long projects. From 120 days for a Keelboat to about 3.3 years for a Galley if you are working by yourself without any magical aid. Even if you do hire multiple sidekicks or just general hirelings, you aren't going to get paid until the entire job is done, but they will all need to be paid while they work on the ship. Instead of making brand new ships, you could also repair existing ones, and as an Artificer, you almost certainly have the Mending cantrip which can help you.
  
• Candle's of the Deep, Heward's Handy Spice Pouch, Orbs of Direction, Ropes of Mending, Alchemy Jugs, Caps of Water Breathing, Decanters of Endless (fresh)water, Eyes of the Eagle, Gloves of Swimming and Climbing and Wind Fans are all magic items that you could sell to shipowners and crews to help them in their travels. Ghosts of Saltmarsh also has a number of Ship Upgrades that you could offer.
  
• Experts are going to help you the most here as they can get the most amount of kit proficiencies to help across a variety of problems. Spellcasters can help if you decide for focus more on maritime magical goods.
  
• If you plan on building ships from scratch, then you are going to need every Forge Cleric and Fabricate Spell you can get your hands on. But be careful, if you are able to start churning out ships in a week for half the cost of the competition, then that is a LOT of people that you are putting out of business and there is sure to be repercussions. For a non-magical approach, just about every party has something that they can contribute to this project. Martial classes will DO WORK on cutting down lumber and getting that ship together. Partial Casters can help speed up certain aspects of building and augment others through buffs.
  

Please Feel Free to Submit your own Business Ideas! I'll add them if they fit the stated format. Punny Shop names encouraged!

High Concept Premises

• Being shrunk to a tiny size, maybe put into a person's/creature's body. (Honey I shrunk the Kids, Ant Man, Anatomy Park).
• Switching bodies (Freaky Friday).
• Time Travel. Time loop (Groundhog Day).
• Adventure taking place in a dream, illusion, virtual reality, computer game, a TV show (Inception, Ready Player One, Eternal Sunshine of the Spotless Mind, The Matrix, Jumanji).
• Deal with the Devil.
• Animals/creatures gain sentience/intelligence.
• Open portal to another world, a parallel dimension, an alternate timeline (Mist, Stargate, Another Earth).
• A baby monster. An alien/dragon egg. A boy and his robot.
• Body Snatchers, Brain Slugs - parasites that control your mind.
• Shapeshifter - person/monster that can assume any form.
• Evil Twins of the Heroes.
• Hive mind. Creatures telepathically united into one consciousness. Assimilating other creatures.
• Traditionally evil guys are good and vice versa (Shrek, Descendants, Megamind, Suicide Squad).
• Memory wiping, altering, transplanting (Morty's Mind-Blowers, Memento.)
• Possession / Mind Control (RoboCop, Captain America: Civil War.)
• A mysterious magic force has created a zone where the laws of physics and magic have been warped (Annihilation, Stalker)
• Befriend a creature (ET, How to Train your Dragon, Ratatouille, Astro Kid, Pokemon).
• Post-apocalypse, aftermath of a disaster (Fallout, The Day After Tomorrow, Resident Evil).
• Artificial Intelligence, sentient construct (Terminator, Wall-E, Avengers:The Age of Ultron).
• An accident causes captive dinosaurs/monsters/demons/zombies escape (Jurassic Park).
• Love Potion. Succubus.
• Don't go below the speed limit - if you stop moving a person dies or a bomb explodes (Speed, Crank, The X-Files "Drive" episode).
• A plague/disease/epidemic with unusual effects (fear of open spaces, rage, horniness, loss of one of the senses, wild magic / people to lose magic). It can be transmitted by magic, when infected casters target other casters with a spell.
• Dangerous/violent plants.
• An inanimate object comes to life.
• Raising undead to return a loved one back to life.
• You become God to race of tiny creatures.
• Change age - turn into kids or old people.
• Covert stealthy alien invasion.
• A person turned into an animal.
• A threat you forget about once you stop looking at it.
• Infohazards.
• Common animals are being turned savage (and giant) by a rogue magical effect (maybe an evil druid), and the party has to contain the destruction that they cause while trying to find a solution.
• Magic is fading / going wild and unpredictable.
• Superman goes genocidal. Defeat a being of incredible power, without it finding out that you're after it.
• An ancient civilization is long gone, only a single robot/golem/computeweapon is still functioning.
• Heroes are isolated in a confined environment with a monster.(Alien)
• A location is occupied by enemies/monsters/terrorists, heroes are the only ones who escaped from being taken hostage. (Die Hard in a village, on a ship, on a zeppelin, on a train, in a magic school, in a King's castle).
• A powerful monster begins killing people in the area (Tremors: Jaws in a desert).
• Set in a world where the evil overlord has won.
• The evil adventuring party.
• Deadly game show / competition.
• A location (small town, building, ship) is suddenly trapped underneath an impenetrable dome.
• Someone from our world is stuck in fantasy.
• A dangerous child (has faulty psychic powers, prophesied to be a devil, youngling of a dangerous monster)
• Two huge powers (monsters, giants, powerful mages, armies) fight each other, causing a lot of collateral damage.
• A large number of cursed or dangerous magical items have been sold or distributed to an unsuspecting populace (Friday the 13th series, Warehouse 13)
• First Contact with a sentient race (Arrival, Alien Nation, Contact, District 9, Star Trek, V series)
• Magic is fading / going wild and unpredictable.
• Space ship crashing in middle ages.
• Magic items (or maybe just some magic items) become secretly sentient and drive around their owners while they are asleep.
• An ancient evil is very slowly rising out of the ground and waking up. People need to hurry to figure out how to make it go away or else assemble a team strong enough to kill it when it awakes.
• The entire population of a town seemingly disappeared but in fact dug underground secret caves and is reverting to animal tendencies.
• The party comes across a mysterious artifact, it melds with/into the first party member to touch it, granting them incredible powers but also changes their consciousness.
• A long lost civilization is rising back up from the sea.
• The local ruler may have been replaced by a doppelganger, but nobody wants to risk their neck to find out for sure.
• Act as an experimental subject for a crazy scientist/wizard.
• Creatures from video games, stories, paintings, come to life.
• Spell/artifact/curse that prevents the whole town from being able to lie.
• Space ship / UFO crashing in middle ages.
• Duplication powers, making clones.
• Ancient/Lost Civilization. Atlantis.
• Gigantic Monster (Godzilla, Cloverfield, King Kong, Kaiju).
• Superheroes/Supervillains.
• Ghosts, haunted house/village. Restless spirits that need to be placated.
• Zombies.
• Vampires.
• Ninjas.
• Secret society/cult.
• Underground civilization.
• Underwater adventure. Merefolk.
• Adventure set in a world where the forces of good won a little too well. Where the people in charge are all Lawful Good and have no tolerance for anything else. Tyranny of the traditionally good creatures like celestials, paladins, etc. The slightest misstep can cause a person to be 'disappeared'.

High Concept Premises

• Being shrunk to a tiny size, maybe put into a person's/creature's body. (Honey I shrunk the Kids, Ant Man, Anatomy Park).
• Switching bodies (Freaky Friday).
• Time Travel. Time loop (Groundhog Day).
• Adventure taking place in a dream, illusion, virtual reality, computer game, a TV show (Inception, Ready Player One, Eternal Sunshine of the Spotless Mind, The Matrix, Jumanji).
• Deal with the Devil.
• Animals/creatures gain sentience/intelligence.
• Open portal to another world, a parallel dimension, an alternate timeline (Mist, Stargate, Another Earth).
• A baby monster. An alien/dragon egg. A boy and his robot.
• Body Snatchers, Brain Slugs - parasites that control your mind.
• Shapeshifter - person/monster that can assume any form.
• Evil Twins of the Heroes.
• Hive mind. Creatures telepathically united into one consciousness. Assimilating other creatures.
• Traditionally evil guys are good and vice versa (Shrek, Descendants, Megamind, Suicide Squad).
• Memory wiping, altering, transplanting (Morty's Mind-Blowers, Memento.)
• Possession / Mind Control (RoboCop, Captain America: Civil War.)
• A mysterious magic force has created a zone where the laws of physics and magic have been warped (Annihilation, Stalker)
• Befriend a creature (ET, How to Train your Dragon, Ratatouille, Astro Kid, Pokemon).
• Post-apocalypse, aftermath of a disaster (Fallout, The Day After Tomorrow, Resident Evil).
• Artificial Intelligence, sentient construct (Terminator, Wall-E, Avengers:The Age of Ultron).
• An accident causes captive dinosaurs/monsters/demons/zombies escape (Jurassic Park).
• Love Potion. Succubus.
• Don't go below the speed limit - if you stop moving a person dies or a bomb explodes (Speed, Crank, The X-Files "Drive" episode).
• A plague/disease/epidemic with unusual effects (fear of open spaces, rage, horniness, loss of one of the senses, wild magic / people to lose magic). It can be transmitted by magic, when infected casters target other casters with a spell.
• Dangerous/violent plants.
• An inanimate object comes to life.
• Raising undead to return a loved one back to life.
• You become God to race of tiny creatures.
• Change age - turn into kids or old people.
• Covert stealthy alien invasion.
• A person turned into an animal.
• A threat you forget about once you stop looking at it.
• Infohazards.
• Common animals are being turned savage (and giant) by a rogue magical effect (maybe an evil druid), and the party has to contain the destruction that they cause while trying to find a solution.
• Magic is fading / going wild and unpredictable.
• Superman goes genocidal. Defeat a being of incredible power, without it finding out that you're after it.
• An ancient civilization is long gone, only a single robot/golem/computeweapon is still functioning.
• Heroes are isolated in a confined environment with a monster.(Alien)
• A location is occupied by enemies/monsters/terrorists, heroes are the only ones who escaped from being taken hostage. (Die Hard in a village, on a ship, on a zeppelin, on a train, in a magic school, in a King's castle).
• A powerful monster begins killing people in the area (Tremors: Jaws in a desert).
• Set in a world where the evil overlord has won.
• The evil adventuring party.
• Deadly game show / competition.
• A location (small town, building, ship) is suddenly trapped underneath an impenetrable dome.
• Someone from our world is stuck in fantasy.
• A dangerous child (has faulty psychic powers, prophesied to be a devil, youngling of a dangerous monster)
• Two huge powers (monsters, giants, powerful mages, armies) fight each other, causing a lot of collateral damage.
• A large number of cursed or dangerous magical items have been sold or distributed to an unsuspecting populace (Friday the 13th series, Warehouse 13)
• First Contact with a sentient race (Arrival, Alien Nation, Contact, District 9, Star Trek, V series)
• Magic is fading / going wild and unpredictable.
• Space ship crashing in middle ages.
• Magic items (or maybe just some magic items) become secretly sentient and drive around their owners while they are asleep.
• An ancient evil is very slowly rising out of the ground and waking up. People need to hurry to figure out how to make it go away or else assemble a team strong enough to kill it when it awakes.
• The entire population of a town seemingly disappeared but in fact dug underground secret caves and is reverting to animal tendencies.
• The party comes across a mysterious artifact, it melds with/into the first party member to touch it, granting them incredible powers but also changes their consciousness.
• A long lost civilization is rising back up from the sea.
• The local ruler may have been replaced by a doppelganger, but nobody wants to risk their neck to find out for sure.
• Act as an experimental subject for a crazy scientist/wizard.
• Creatures from video games, stories, paintings, come to life.
• Spell/artifact/curse that prevents the whole town from being able to lie.
• Space ship / UFO crashing in middle ages.
• Duplication powers, making clones.
• Ancient/Lost Civilization. Atlantis.
• Gigantic Monster (Godzilla, Cloverfield, King Kong, Kaiju).
• Superheroes/Supervillains.
• Ghosts, haunted house/village. Restless spirits that need to be placated.
• Zombies.
• Vampires.
• Ninjas.
• Secret society/cult.
• Underground civilization.
• Underwater adventure. Merefolk.
• Adventure set in a world where the forces of good won a little too well. Where the people in charge are all Lawful Good and have no tolerance for anything else. Tyranny of the traditionally good creatures like celestials, paladins, etc. The slightest misstep can cause a person to be 'disappeared'.