Single-player games like Cubex
Below are 10 single-player Steam games similar to Cubex, 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 Cubex page.
Ranked picks
- 1
The Carnival Killer
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action with Cubex.
Step right up to the most twisted carnival you’ll ever encounter! In The Carnival Killer, 4 players find themselves trapped in a nightmarish amusement park where laughter turns to terror. Killer Clowns stalk the grounds, hunting down anyone who fails to escape the nightmare.
- 2
Purge Phalanx
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action with Cubex.
Unleash heavy weaponry to exterminate the demonic horde alone or up to 4 players online and/or in splitscreen
- 3
Insomnia is Coming
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
INSOMNIA IS COMING. You won’t sleep. In a world without rules, you sink into chaos – drugs, alcohol, betrayal. Each choice drags you deeper. A psychological FPS horror about guilt and sin, where sleepless nights blur reality and force you to face truth… or the end.
- 4
Piywebler
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
A 1–4 player co-op horror experience. Burn the books in a cursed hospital, find the keys, and escape from the entity hunting you.
- 5
The Midnighters
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
The Midnighters is a survival horror game for 1-4 players where you hunt for cursed treasures. Find and seize the treasures claimed by terrifying creatures. But as you do, heed the devil's whispers and never trust your eyes.
- 6
Nightmare: Les Origines
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
"Nightmare: Origins" is a multiplayer horror game for four players that immerses you in a nightmarish world between the realm of the dead and the realm of the living.Do you dare to face your fears and unravel the mysteries of Nightmare: Origins?
- 7
PARANOIA PLACE
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
PARANOIA PLACE is a 1-4 player online co-op survival horror game. Together or alone, you will need to solve puzzles, find items and run from the bloodthirsty demonic killer.
- 8
Malum
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action and Adventure with Cubex.
Malum is the premier C-list horror game. Run from a motely collection of bizarre demons then summon in some guns to turn the tables on them. Best enjoyed with friends.
- 9
SHEOL INFERNO
Single-player alternative to Cubex — playable solo, no multiplayer required.
Sheol Inferno is a roguelike card game in which you will accompany Dante on his journey through the 9 circles of Hell and fight alongside him to defeat the guardians of the circles.
- 10
Void Swarm
Single-player alternative to Cubex — playable solo, no multiplayer required. Shares Action with Cubex.
Fight through endless enemy swarms in this fast-paced arcade space shooter with survivor-style progression. Upgrade your ship, unlock powerful fighters, and grow stronger with every run.