Single-player games like Castle Agony
Below are 9 single-player Steam games similar to Castle Agony, 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 Castle Agony page.
Ranked picks
- 1
Brothers - A Tale of Two Sons
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
Guide two brothers on an epic fairy tale journey from visionary Swedish film director, Josef Fares and top-tier developer Starbreeze Studios. Control both brothers at once as you experience co-op play in single player mode, like never before.
- 2
The Stanley Parable
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
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.
- 3
LIMBO
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
Uncertain of his sister's fate, a boy enters LIMBO
- 4
Torchlight II
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
The adventure continues in Torchlight II! An Action RPG filled with epic battles, bountiful treasure, and a fully randomized world. Bring your friends along for the journey with online and LAN multiplayer.
- 5
To the Moon
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
A story-driven experience about two doctors traversing backwards through a dying man's memories to artificially fulfill his last wish.
- 6
The Binding of Isaac
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
Now 20% More Evil with the Free Halloween update!
- 7
Outlast
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
- 8
Mark of the Ninja
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
In Mark of the Ninja, you'll know what it is to truly be a ninja. You must be silent, agile and clever to outwit your opponents in a world of gorgeous scenery and flowing animation. Marked with cursed tattoos giving you heightened senses, every situation presents you with options.
- 9
Dustbowl
Single-player alternative to Castle Agony — playable solo, no multiplayer required. Shares Indie and Adventure with Castle Agony.
A post-apocalyptic adventure game set in a world where the player must search for food, water and essential supplies to survive. Discover a world filled with colourful NPCs, quests and secrets.