Single-player games like Ilamentia
Below are 22 single-player Steam games similar to Ilamentia, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Ilamentia page.
Ranked picks
- 1
Antichamber
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Antichamber is a mind-bending psychological exploration game where nothing can be taken for granted. Discover an Escher-like world where hallways wrap around upon each other, spaces reconfigure themselves, and accomplishing the impossible may just be the only way forward.
- 2
GORSD
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
1-4 player intense arena combat, set deep inside the heart of darkness.
- 3
Finding Your Way
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Rediscover a familiar world by splashing it with color and find your way through the darkness in this first-person exploration game. Traverse 30+ surreal locations, solve intriguing puzzles, and face your demons. Uncover fragments of your story through a meditative journey between light and shadow.
- 4
stikir
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
This game is about making this game.
- 5
Close Your Eyes
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
An anthology of 7 horror tales within a connected universe. Join a murderous marshmallow bound by their past down an atmospheric descent, brought into question by an odd game show host. Follow a Witch trying to seduce her love with sweet things. Plus 5 other surprisingly twisted yet emotional tales.
- 6
Manifold Garden
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Rediscover gravity and explore an Escher-esque world of impossible architecture. Witness infinity in first-person and master its rules to solve physics-defying puzzles. Cultivate a garden to open new paths forward, where an eternal expanse awaits.
- 7
The Liquid Jet
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
A slimy, psychedelic adventure about a girl attending a warehouse rave party with her friends, where she'll go to experience a long, profound bad (?) trip.
- 8
Undefined 339
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Undefined 339 is a TPS Action Adventure game with a Robotics Science Fiction theme. A robot, powered by a human heart, tries to escape its endless dream by climbing upwards.
- 9
The Witness
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.
- 10
Portal
Single-player alternative to Ilamentia — playable solo, no multiplayer required.
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
- 11
OFF
Single-player alternative to Ilamentia — playable solo, no multiplayer required.
“I’m the Batter. I’ve been entrusted with a sacred mission.” -- One of the most influential RPGs of the last 20 years is finally coming to Steam. Take control of the Batter as he seeks to purify an uncanny and hopeless world haunted by specters, guided by a cryptic, grinning cat called The Judge.
- 12
The Stanley Parable: Ultra Deluxe
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
The Stanley Parable: Ultra Deluxe is an expanded re-imagining of 2013's The Stanley Parable. You will play as Stanley, and you will not play as Stanley. You will make a choice, and you will become powerless. You are not here to win. The Stanley Parable is a game that plays you.
- 13
The Stanley Parable
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.
- 14
The Beginner's Guide
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
The Beginner's Guide is a narrative video game from Davey Wreden, the creator of The Stanley Parable. It lasts about an hour and a half and has no traditional mechanics, no goals or objectives. Instead, it tells the story of a person struggling to deal with something they do not understand.
- 15
Boneraiser Minions
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Amass an army of undead to fight endless waves of heroes intent to end your boneraising ways! In this gothic auto-battler rogue-lite Survivor-like, use the bones of slain heroes to raise your minions, collect relics and spells, and unlock meta upgrades, all to survive King Gigald's crusade!
- 16
Spirits Abyss
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Spirits Abyss is a roguelite platformer with destructible terrain. Cast into the Abysm you must explore its diverse depths battling phantasmic meanies and plundering its useful treasures to find a way home... but does something nestle beyond the realmic veil of death?
- 17
Voids Vigil
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Blast through robotic hordes in this arena auto-battler rogue-lite Brotato-like. Use auto-firing weapons and drones, timely dashes and special abilities to reach the Void where a final Conservator awaits convergence. Spend your Cogs wisely within the varied shops to create unique builds!
- 18
Skelly Selest
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Skelly Selest is a score-attack hack slash dash run 'n' gun-athon. Venture into the procedurally generated perdition depths of Hell to purge the evil taint of the Deamonica Netherlords and their fiendly followers.
- 19
Straimium Immortaly
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Straimium Immortaly is a shmup roguelike dungeoncrawler. Explore the butts-hard procedurally generated Cubicus battling beasties, looting endless item and weapon upgrades and defeating huge boss meanies in your vengeful quest to eradicate the Queeni Emperess.
- 20
Echo of the Wilds
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Echo of the Wilds is a puzzly narrativy adventure, featuring randomised wilderness survival. Explore and survive this mysterious tale of wilds. Gather resources to build gear and sustain yourself, learning new skills, lore and the intertwining interactions between the various areas, seasons, and weather.
- 21
Xenosensory
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Xenosensory is a short incremental game with horror themes. Use your cursor to bust Xenos and save convicts then spend your research points on skill tree upgrades, actions, gadgets, and uncover the true horrifying nature of this space station nightmare.
- 22
Straima
Single-player alternative to Ilamentia — playable solo, no multiplayer required. Shares Indie with Ilamentia.
Straima is a devilishly difficult pulse-pumper platformer for 1-4 players. It includes several game modes, selectable powers and gameplay mutators, as well as a full feature level editor with Steam Workshop support so you can design and share your weird creations with chums for immense joy.