Best Procedural Generation Games on Steam

Games using algorithms to create levels, maps, items, encounters, or worlds.

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1Lethal Company - A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
In this game, you can…
  • sell every last scrap, then haul a teammate's body to the counter for the final few credits to hit quota.
  • stay on the ship as mission control, use the terminal to open doors and spot threats, and talk your team back alive through the maze.
  • listen to your friend's voice get muffled and cut off mid-sentence as a monster grabs them in proximity chat.
  • hear a teammate dying over the radio while you keep scavenging, and the person guiding you keeps talking after they're already dead.
  • open a trapped teleporter room, watch one rescue turn into a chain of monster attacks, and still have to find a way out.
  • step into a mineshaft because your friends told you to, then they later find you cocooned and hanging from the ceiling.
  • watch a teammate calmly warn you about a landmine, then immediately scream about a spider and get blown up mid-run.
  • buy gear like jetpacks, ladders, and stun grenades, then accidentally turn them into hazards that kill your own crew.
2The Binding of Isaac: Rebirth - The Binding of Isaac: Rebirth is a randomly generated action RPG shooter with heavy Rogue-like elements. Following Isaac on his journey players will find bizarre treasures that change Isaac’s form giving him super human abilities and enabling him to fight off droves of mysterious creatures, discover secrets and fight his way to safety.
In this game, you can…
  • shoot tears that orbit you, float in place, explode, become knives, or turn into screen-filling lasers.
  • sell your soul for devil powers like wings, then keep descending into your mother's womb and even hell.
  • unlock a dead version of yourself, use it to kill yourself, and get dice powers as the reward
  • turn one item pickup into a complete reroute of how you fight and survive.
  • find secret rooms and hidden shops by probing walls, then turn a quiet floor into a jackpot of weird items.
  • step into a dice room and reroll the whole run's fate in a single gamble.
  • start as a naked baby, get a cat for making a deal, then climb deeper through basement floors via holes in the ground.
  • stack item synergies until bosses die instantly and your attacks become an unstoppable flood.
3R.E.P.O. - An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.
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Feb 26, 2025
96% 👍
of 419k
In this game, you can…
  • get dumped into a boxing arena when the mission fails and beat your friends to crown a winner.
  • run over a teammate with the cart, pick up their body, and use it to kill a monster.
  • watch a monster sprint up, snatch a 20k statue you can barely lift, and hurl it back hard enough to wipe the team.
  • revive teammates mid-round by cashing out their head, or dragging them back to the truck for a revive.
  • haul fragile, fully physics-based treasure like pianos and antique vases that can smash, drop, or lose value on the way out.
  • pick up crouching teammates, throw them onto shelves, and turn their bodies into weapons or hazards.
  • sneak past monsters while dragging sofa-sized loot, then get yanked down a hallway by a ghost as someone drops into an elevator shaft.
  • hide under furniture and whisper in proximity voice chat while monsters search, with the dead and living stuck in separate comms.
4Deep Rock Galactic - Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!
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May 13, 2020
97% 👍
of 378k
In this game, you can…
  • drink a round that rockets the whole team forward, then slam into each other and the station while shouting and tossing mugs.
  • freeze enemies solid, drill them to pieces, and heal off them while they can't move or fight back.
  • hit the drop pod with seconds left, spot a teammate down far away, and turn the escape into a full rescue run mid-extraction.
  • turn a pre-mission lobby into a hangout with beer, dancing, minigames, and physical goofing around instead of menus.
  • grapple to impossible-to-reach minerals, then have a teammate shoot a platform under you so you can mine safely and get out.
  • finish the objective, call extraction, then carve a brand-new tunnel straight to the drop pod while bugs race you through it.
  • fight off swarms in caves that aren't preset arenas, so every defense turns into a new improvisation based on cliffs, tunnels, and open voids.
  • bring a solo drone that mines, lights caves, carries minerals, digs paths, and can revive you so you can still finish missions alone.
5PEAK - PEAK is a co-op climbing game where the slightest mistake can spell your doom. Either solo or as a group of lost nature scouts, your only hope of rescue from a mysterious island is to scale the mountain at its center. Do you have what it takes to reach the PEAK?
In this game, you can…
  • shoot a teammate with a blow dart, stick them to a cactus, and then eat them.
  • die and keep playing as a ghost, floating alongside your team and guiding them upward even though you can't touch anything.
  • play in a modded lobby with up to 20 climbers, coordinating rescues and supplies while the whole group screams in voice chat.
  • help each other up ledges with hand boosts, ropes, and climbing spikes so the route you build becomes the route your friends climb next.
  • hear a friend's screams fade in proximity chat as they fall off a cliff and their voice disappears into the distance.
  • start on a beach and climb through jungle rain, a stamina-draining blizzard, lava mountains, and an almost-vertical volcano crater escape.
  • find survival gear in suitcases and shrines, including rare items that only show up if everyone in the party is still alive.
  • use a lollipop to reach an otherwise impossible ledge, then drop a rope to teammates who are starving below.
  • slip on a banana peel that spawns when you feed someone a banana, sending them off a cliff if they're standing too close.
6RimWorld - A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
In this game, you can…
  • stockpile hundreds of mortar shells, have one cook off during a raid, and set off a chain reaction that blows half your mountain base apart.
  • trap an insect infestation in a sealed room, steal the jelly, and keep repeating until the bugs are basically livestock.
  • recruit a cannibal crime lord, feed him nutrient paste, surgically add retractable claws, and rename him C.A.N.N.I.B.A.L.
  • start as a lone 74-year-old scientist, build cleaning robots, survive a siege, then install turrets and replace your colonists with bionics.
  • watch a pet rat jump a raider, die in the fight, and still make the raider bleed out from the wounds.
  • build layered turrets, combat cyborgs, and war animals, then have a horde of manhunting tortoises chew through the perimeter and overwhelm the whole plan.
  • turn a prisoner into a walking happiness beacon by installing mood tech, then keep them around as a mobile morale boost.
  • amputate an infected foot by hitting it with a jade club.
7Slay the Spire - We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!
In this game, you can…
  • cut your deck down until you can loop actions forever and take turn after turn without running out.
  • stack armor so high you can copy a card and turn that defense into a one-hit kill.
  • upgrade a key card at a campfire, via an event, or even mid-fight, and have the new version change how every combat plays out.
  • build a deck from scratch, choosing one of three new cards after every fight.
  • pick a route each act, weighing shops, campfires, mystery events, and elite fights that can define your whole run.
  • find a single relic that permanently changes what strategies are even possible for the rest of the run.
  • walk into a question-mark event that can hand you a blessing, a curse, or a new rule you have to build around on the spot.
8Balatro - The poker roguelike. Balatro is a hypnotically satisfying deckbuilder where you play illegal poker hands, discover game-changing jokers, and trigger adrenaline-pumping, outrageous combos.
In this game, you can…
  • reshape your deck until it's 20 Aces or a single suit.
  • turn a normal poker hand into an impossible one, like five of a kind.
  • stack two effects so one adds a new card every round and the other immediately buffs it, creating a self-feeding deck growth loop.
  • make a straight or flush using only four cards.
  • reroll the shop until you find the exact upgrade you're missing, burning all your cash to do it.
  • start from a basic deck, buy wild upgrades between rounds, and watch one tiny combo turn into billions of points.
  • skip early rounds for cash, ride interest, then pivot your whole deck plan and crush a 1M+ blind later.
  • keep playing after you "win" in Endless mode, turning runs into a high-score lab for crazier combos.
9Dead Cells - Dead Cells is a roguelite, metroidvania inspired, action-platformer. You'll explore a sprawling, ever-changing castle... assuming you’re able to fight your way past its keepers in 2D souls-lite combat. No checkpoints. Kill, die, learn, repeat.
In this game, you can…
  • start as a headless corpse piloted by a green blob, die, then hop into a fresh body and grow yourself back before the next run.
  • unlock permanent movement powers like wall-running, teleporting, and growing vines, then use them to open areas that were impossible before.
  • grab one random drop mid-run and suddenly rebuild your whole combat style around poison, bleed, traps, backstabs, or a totally different weapon.
  • take a different route every run as the castle rearranges exits, secrets, enemies, and rewards across the island.
  • freeze an enemy with a parry, then swap weapons and crush them with a heavy hit while you keep moving.
  • take a cursed chest for better rewards, then have to get a streak of kills where one hit ends the run.
  • chain double jumps, aerial hits, rolls, weapon swaps, and skills into one continuous combo that carries you through a whole room.
10FTL: Faster Than Light - This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
In this game, you can…
  • vent rooms into space to suffocate boarders or put out fires.
  • reach the final boss, win the fight, then learn it has three phases and the battle keeps escalating.
  • teleport your crew onto an enemy ship to sabotage systems and fight room-to-room, then lose them if the ship explodes first.
  • hit a wrecked ship system again to open hull breaches that keep repair crews dying inside.
  • pause mid-fight to queue repairs, reroute power, and fire weapons, then unpause for a second to let the plan land.
  • get a run-ending chain reaction where fires, breaches, no oxygen, and boarders all happen at once.
  • hack or mind-control enemy systems so their own doors trap their crew while your weapons tear the ship apart.