Single-player games like Mental State. Game One
Below are 8 single-player Steam games similar to Mental State. Game One, 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 Mental State. Game One page.
Ranked picks
- 1
Not Enough Space
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Action and Indie with Mental State. Game One.
Land with your friends on the surface of various planets, gather resources, create items and buildings, defeat enemies and move to other planets to discover their secrets and secrets
- 2
Photon Engineer
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Indie and Adventure with Mental State. Game One.
Master laser manipulation and environmental control in this sci-fi puzzle game. Unleash your creativity and uncover the secrets of mysterious platforms that have suddenly appeared near Jupiter.
- 3
TVs: The Awakening
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Action and Indie with Mental State. Game One.
TVs is a single player platformer game combining intense action with challenging puzzles, focuses on a journey of a tv character called “u” who needs to drive his way on strange events in strange world to solve mysterious puzzles of his life till he finds the truth.
- 4
Shy Eye Labyrinth: The Incredible Mystery
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Indie and Adventure with Mental State. Game One.
Shy Eye Labyrinth: The Incredible Mystery is a fast-paced 3D platformer set in a mystical labyrinth. Explore the different parts of the world, find runes to open gates, complete time challenges and unravel the mystery of The Shy Eye.
- 5
Tootinis
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Action and Indie with Mental State. Game One.
Tootins is an action packed puzzle adventure game in full 3D filled with original monsters, music and gameplay. Use your bubble spitting powers to smash or push monsters, solve puzzles and save your village. The gameplay is an original mix of action and puzzle elements.
- 6
Niktophobia
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Action and Indie with Mental State. Game One.
NIKTOPHOBIA - sci-fi horror for 1-4 players. The team arrives at the space station to extract alien bio-samples. Players will use various tools and manipulate the station's energy to get out of trouble together.
- 7
The Pillar
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Action and Indie with Mental State. Game One.
Welcome to The Pillar! Escape room game leading throughout mystery islands. Solve dozens of puzzles in the first-person adventure.
- 8
Beta Escape
Single-player alternative to Mental State. Game One — playable solo, no multiplayer required. Shares Indie and Adventure with Mental State. Game One.
Escape room inspired game. Solve puzzles, alone or with your friend, just like in your favorite escape room!