Best Underground Games on Steam
Games set below ground, in caves, tunnels, mines, or hidden spaces.
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1White Knuckle - White Knuckle is a first-person roguelite speed-climbing game. Ascend through the guts of SUB-STRUCTURE 17 using precision movement mechanics. Sharp reflexes and resource management will bring you out from under ten thousand meters of concrete and decay.
Apr 17, 2025
In this game, you can…
- hang by one hand, open your inventory, and use an item mid-climb before your grip gives out.
- throw a rebar rod to shove yourself backward, timing the recoil to boost upward to a higher hold.
- hammer pitons into the wall as emergency handholds, and they can rip out if you place them badly.
- climb hand over hand with separate left and right hands, each with its own stamina bar.
- use clever movement and tool placement to take a shortcut, then barely escape the rising mass as the route opens up.
- play rooms that come in random order with randomized handholds and loot, forcing new route choices every run.
- fall dozens of meters and still pull off a last-second recovery into a risky shortcut before hitting the abyss.
2The Exit 8 - You are trapped in an endless underground passageway. Observe your surroundings carefully to reach "The Exit 8".
Nov 29, 2023
In this game, you can…
- get anomalies that only reveal themselves through sound, a second look, or by starting halfway through the walk.
- reach an "Exit 8" sign and still have to clear more corridors to actually escape.
- see the corridor secretly reset you to Exit 0 even when it looks completely normal.
- spawn straight into the underground corridor with no title screen or intro.
- scan the hallway for anything off, then choose to keep going or immediately turn back.
- watch the exit sign count up with each correct corridor, then snap back to Exit 0 on one wrong call.
- spot a smiling businessman anomaly where a normal passerby suddenly grins unnaturally.
- get chased by a fast anomaly where the right move is to instantly turn around and run.
3Poco - Poco is the story of the world's smallest clown, who is banished from the circus and finds themself in a mysterious undergrowth full of lost and broken things. Explore, meet strange creatures, solve puzzles, and help Poco return to the circus in this charming 2D/3D hybrid point-and-click adventure.
May 20, 2025
In this game, you can…
- ride a unicycle, make balloon animals, join a trumpet band, and even sell your soul to the devil as playable clown training.
- befriend a crew of homunculi, recruit them into your plan, and build a rocket out of the Below World's castoffs.
- find a dead insect and respond by composing a song in its honor.
- start as the world's smallest clown, drop into an underground junkworld, and scavenge a way back to the giant walking circus.
- choose at the end to stay with your new underground friends or return to the circus for a different ending.
- walk into John's house, find him dead, and hear the music muffle as the whole room's mood shifts.
- hear one main theme transform between areas as instruments and genres swap while you move through the world.
- talk to characters through word-by-word sound bites instead of voiced dialogue, so every conversation has its own weird rhythm.
4while True: learn() - You’re a machine learning specialist who makes neural networks but your cat seems to be better at it. Now you must solve puzzles to build a cat-to-human translation system (who knows what else this cat is capable of!). Earn a fortune, buy kickass cat outfits, learn how machine learning really works!
Jan 17, 2019
In this game, you can…
- build a cat-to-human translation system so you can understand your cat.
- build a self-driving car and make your cat the pilot.
- launch startups that can make you millions in shares or wipe you out with bankruptcy and a full restart.
- drag machine-learning blocks together, hit Release, and watch the data stream through your setup.
- rearrange your whole setup to win a gold medal by hitting speed targets, even if it means sacrificing accuracy.
- solve jobs where the winning move is tailoring your logic to exact test inputs, like swapping two links to match specific outputs.
- reroute all your data into a fresh node, manually train it for a while, then undo the wiring and keep the trained piece.
- spend your freelance money on ridiculous cat gear like hats, helmets, and a Viking costume.
5THE LONGING - An unusual mix of adventure and idle game. In utter loneliness deep below the surface, it's your task to wait for the awakening of your king... for 400 days.
Mar 5, 2020
In this game, you can…
- start a 400-day real-time countdown that keeps running even when you quit for months.
- sit down and read full classic books in real time, page by page, while the game quietly keeps going.
- set a destination you've visited before and let your character walk there on his own in real time.
- find doors and obstacles that only change after real waiting—hours for a door, days for water to rise, weeks for moss to grow.
- leave for weeks and come back to find the cave changed, with webs built, mushrooms spread, and new water reshaping paths.
- collect coal, rugs, chalk, crystals, and other objects to furnish your cave room, and staying there makes time pass faster.
- chase a mysterious door that appears at midnight in random places, making finding it a time-specific hunt.
- choose to wake the king early, triggering an ending with consequences instead of simply waiting out the full 400 days.
6Scanner Sombre - Scanner Sombre is a 3d horror cave exploration game where darkness is your greatest foe. Illuminate the unseen with your LIDAR scanner, revealing the eerie beauty and peril of the abyss. From the creators of Prison Architect, this immersive adventure uses light and shadow for a haunting experience.
Apr 26, 2017
In this game, you can…
- reach the end and look back at a single persistent map that remembers millions of scanned points, preserving your entire journey as a glowing cloud.
- cross an underground lake in VR while the headset glitches, using only your dot-map and sound as the water turns terrifying.
- see ghost-like, T-posing figures snap into existence from scattered scan dots, including a bridge jumpscare in the dark.
- paint pitch-black caves into view with a handheld scanner, revealing the world as glowing dots instead of light.
- choose between wide, messy sprays to survive or a tight beam to trace ledges, stalagmites, and ceilings in detail.
- scan just enough to realize how deep a drop is or how vast a cavern roof is, then watch everything outside your beam vanish back into black.
- watch the scanner leave a human-shaped void of unscanned darkness right in front of you.
7MineMogul - Design and build a factory deep underground in this physics-based automation sandbox. Mine resources, buy machines and master the chaos as you become the ultimate Mine Mogul!
Dec 4, 2025
In this game, you can…
- watch thousands of physical ore pieces spill off broken conveyors and pile into a mine-wide mess.
- tear out and rebuild a production line while the miners keep feeding ore, then thread the overflowing backlog back into the system without clogging it again.
- launch items across the cave and use their momentum and gravity as part of the transport plan.
- squeeze a full factory into cramped caves by stacking conveyors, weaving through tiny tunnels, and rerouting around rock walls.
- turn a single overloaded sorter into a full reroute project by splitting 10+ auto miners into multiple paths inside a tiny space.
- crank mining so hard the output buries your own setup under a growing mountain of ore.
- set up a deep underground spaghetti of belts and stations that looks impossible, then actually runs smoothly.
- explore new cave sections and abandoned mine areas you can buy into, unlocking weird new spaces that force a whole new layout.
8Cave Crawlers - Cave Crawlers is a 1-10 player rogue lite set deep underground in a system of randomly generated caves. Players use weapons, spells, and talents to defeat the unique bosses and enemies found in each biome.
Jul 10, 2023
In this game, you can…
- team up with up to 10 players in co-op, with bigger squads making the caves harder and the run louder.
- build a run around 100+ weapons, each with its own talent effect and weapon-specific talent tree.
- fight in pitch-black caves when your torch burns out, then strike flint and steel to get light back mid-combat.
- enter trapped rooms for big rewards, then hit a ladder into an abandoned mine shaft and keep pushing deeper.
- reach deep floors like 25 in a single run, where bosses and enemy encounters ramp into unexpectedly complex fights.
- use a torch to heal allies, then swap to a weapon and keep the team alive while the cave keeps spawning trouble.
- stack talents, spells, gear, and room discoveries until your playstyle shifts mid-run into a totally different build.
9HAAK - HAAK is a Metroidvania-Platformer. As the mysterious wanderer Haak, you embarked on an epic expedition across the vast cyber-wasteland to find your lost brother. Explore deserted cities and metro, refine your weapons and hack skills, and uncover the secrets behind metal and dust.
Aug 24, 2022
In this game, you can…
- open a floating black cube and get a brand-new ability you didn't know existed.
- find semi-hidden terminals that change a room's rules, like slowing down gas that seems impossible to outrun.
- use your hook to swing gaps, trigger distant switches, solve rooms, and even work it into fights.
- chain a hook, dash, charged slash, stomp, and directional lash into one long movement combo.
- return to early areas with new powers and turn useless routes into hidden passages and side paths.
- hit fast travel points so you can pop back to old regions instantly and keep exploring without long treks.
- hunt secrets behind breakable walls and turn late-game cleanup into a full-map scavenger puzzle.
- push through platforming rooms that feel like crafted puzzles, where route planning and sequencing matter as much as timing.
10Mining Mechs - Unleash your inner miner as you commandeer a high-tech Mining Mech! Mine for valuable resources and upgrade your mech for even bigger hauls as you explore the underground. Fun to play alone or with up to 7 friends in online co-op multiplayer!
Oct 27, 2023
In this game, you can…
- play online co-op with up to 8 people and all drill into the same underground map together.
- build a passive-income pipe network by finding mines underground, running a pipeline back to the surface, and watching money start flowing automatically.
- stack the same booster over and over at the shop until your drill run turns into a bomb-powered speed sprint.
- keep digging until your mech's dirt tank fills up, then choose when to surface instead of being forced back by fuel.
- restart after a run with new-game-plus bonuses like extra income, starting boosts, and even free mech upgrades.
- buy a new mech that arrives as an empty husk, feel weaker than before, then sink cash into it until it finally overtakes your old machine.
- follow a treasure map through the tunnels to a buried chest, then dig it up for a haul bigger than regular minerals.
