Single-player games like Quantum Suicide
Below are 9 single-player Steam games similar to Quantum Suicide, 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 Suicide page.
Ranked picks
- 1

Muv-Luv Alternative
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Adventure and Casual with Quantum Suicide.
Playtime's over. Time for despair. Experience the definitive version of a masterpiece in the Muv-Luv trilogy's thrilling conclusion. Note: therapy not included.
- 2

Zero Escape: Zero Time Dilemma
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Adventure with Quantum Suicide.
Nine participants awaken, trapped in an underground facility. To escape, they must play a game with deadly consequences. Who will live, and who will die? The choice is yours. Let the Decision Game begin…
- 3

Birth ME Code
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Indie and Adventure with Quantum Suicide.
The second entry of the Abime Series. Play as the mastermind in a death game where you must find the traitor while concealing your identity. Six hours, one school, six deaths. Nine participants fight for survival: it's kill or be killed, trust or deceive, escape or die.
- 4

STEINS;GATE
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Adventure with Quantum Suicide.
Developed by 5pb. and Nitroplus, STEINS;GATE was awarded Famitsu magazine's coveted annual Game of Excellence award and was voted one of the most emotionally charged “tear-inducing games” ever made, in a Famitsu poll. It is a gripping and moving Visual Novel, which has already spawned manga and anime adaptations.
- 5

Root Double -Before Crime * After Days- Xtend Edition
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Adventure with Quantum Suicide.
Rescue squad captain Watase Kasasagi wakes up without his memories in the middle of his most critical mission yet-- a nuclear meltdown at a research facility. In an unfamiliar place and without his years of training, he must rescue the survivors and escape...
- 6

The Letter - Horror Visual Novel
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Indie and Adventure with Quantum Suicide.
When seven people fall prey to a vicious curse, they will discover that horror rests not from the shadows lurking about, but within themselves. To what ends will one go in order to survive?
- 7

Raging Loop
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Indie and Adventure with Quantum Suicide.
The feast has begun, can you escape the village alive?
- 8

CORPSE FACTORY
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Indie and Adventure with Quantum Suicide.
Discard your sense of morality and enter the world of CORPSE FACTORY. An obscure website allows users to request a death. Victims supposedly receive a photograph of their own corpse before they are killed! With English voice acting by an all-star cast.
- 9

Zero Escape: The Nonary Games
Single-player alternative to Quantum Suicide — playable solo, no multiplayer required. Shares Adventure with Quantum Suicide.
Kidnapped and taken to an unfamiliar location, nine people find themselves forced to participate in a diabolical Nonary Game by an enigmatic mastermind called Zero. Why were they there? Why were they chosen to put their lives on the line? And more importantly, who can be trusted?