Single-player games like Quantum Conundrum
Below are 11 single-player Steam games similar to Quantum Conundrum, 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 Quantum Conundrum page.
Ranked picks
- 1
Up Against Aliens
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
Navigate cosmic debris using time-bending tech in this 3D platformer. Solve puzzles and thwart the alien threat across shifting landscapes. Will you be Earth's unexpected savior when you go Up Against Aliens?
- 2
Fail to Win
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required. Shares Casual with Quantum Conundrum.
Abuse the game's quirks to progress through slapstick deathtrap puzzles, uncovering the secrets of a world going through an identity crisis.
- 3
The God Unit
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
The GoD Unit is a first-person physics-based puzzle game set in a near pre-apocalyptic future, featuring the mass manipulation ability and other familiar and beloved puzzle mechanics.
- 4
Portal
Single-player alternative to Quantum Conundrum — 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.
- 5
Soft(A)ware
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
A surreal puzzle-platformer where you bend gravity, rewind time, and disrupt a virtual prison built to contain you.
- 6
The Ball
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required. Shares Strategy with Quantum Conundrum.
As a swashbuckling archaeologist, unlock the mystery of the ancient ruins that have been hidden for centuries and discover a mysterious artifact, a gold and metal shelled Ball.
- 7
Suicide Guy
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
Suicide Guy is set in the incredibile and extraordinary dreams of its protagonist. What would you do in order to save the thing you love most? Immerse yourself into his weird dreams and help him to wake up before it's too late.
- 8
Bionic Bay
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required. Shares Casual with Quantum Conundrum.
A scientist uses a unique teleportation instrument to escape an ancient biomechanical world filled with imaginative technology, deadly traps, and hidden secrets.
- 9
Portal 2
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
- 10
Murdered: Soul Suspect
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
MURDERED: SOUL SUSPECT™ takes players into a whole new realm of mystery where the case is personal and the clues just out of reach, challenging gamers to solve the hardest case of all… their own murder.
- 11
Dark Void™
Single-player alternative to Quantum Conundrum — playable solo, no multiplayer required.
Dark Void™ is a sci-fi action-adventure game that combines an adrenaline-fueled blend of aerial and ground-pounding combat.