Single-player games like Not Only One Brain
Below are 8 single-player Steam games similar to Not Only One Brain, 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 Not Only One Brain page.
Ranked picks
- 1
Zombie War:New World
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
"Zombie World War: New World" is a shooter where players and three AI teammates battle a massive zombie invasion. They must cooperate using skills and strategies to survive and defeat mutants. Intense combat with high-quality graphics and PBR materials providing a visually stunning experience.
- 2
Dormant Seed
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
A survival horror puzzle game where you navigate a perilous environment, outwit eerie AI robots and mutated zombies with your wits, solve mind-bending puzzles layer by layer, and fight for a glimmer of hope in a desperate situation.
- 3
Capital Fire
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
An action RPG that combines exploration with dynamic combat. Estrela is a young defender of democracy who searches for the Book of the Greater Law to put an end to a terrible threat from patriotic zombies.
- 4
Airtight City 密闭之城1.0
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
This is a TPS, horror-type action shooting game. The game will draw players into a terrifying dark world with detailed atmosphere rendering and weird story. Here, you are not defenseless, but even with a gun, you can't suppress the trembling from the heart. Game revenue is used for 2.0 development.
- 5
Rabbit Hole
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
An ancient evil has descended upon the rural town of Rabbit Hole. Now Shaun Turner not only has to untangle a twisted web of supernatural events and mysteries to save his family but also escape from the hellish remains of his hometown.
- 6
Voidling Bound
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and RPG with Not Only One Brain.
Hatch, evolve, and upgrade powerful space creatures in this action-packed sci-fi 3rd person shooter that reinvents the monster taming genre!
- 7
Resident Evil 3
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action with Not Only One Brain.
Jill Valentine is one of the last remaining people in Raccoon City to witness the atrocities Umbrella performed. To stop her, Umbrella unleashes their ultimate secret weapon: Nemesis! Also includes Resident Evil Resistance, a new 1 vs 4 online multiplayer game set in the Resident Evil universe.
- 8
Despair: Blood Curse
Single-player alternative to Not Only One Brain — playable solo, no multiplayer required. Shares Action and Indie with Not Only One Brain.
A third-person survival horror game featuring non-linear gameplay, puzzles, and enemies from the depths of hell. When Anna's mother passes away from a sudden illness, she receives a worrying letter from her sister suggesting that not all is as it seems. Will she uncover the truth?