Single-player games like .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest
Below are 11 single-player Steam games similar to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest, 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 .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest page.
Ranked picks
- 1
The Entropy Centre
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
Think in reverse. Outsmart the impossible. A mind-bending first-person adventure where you solve ingenious and complex puzzles by rewinding objects through time.
- 2
The Talos Principle
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Action and Indie with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
The Talos Principle is a first-person puzzle game in the tradition of philosophical science fiction. Made by Croteam and written by Tom Jubert (FTL, The Swapper) and Jonas Kyratzes (The Sea Will Claim Everything).
- 3
Q.U.B.E. 2
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Action and Indie with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
Q.U.B.E. 2 is the sequel to the hit first-person puzzle game Q.U.B.E. You are Amelia Cross, a stranded archaeologist who has awoken among the ruins of an ancient alien landscape. With the distant help of another survivor you must solve the puzzles of this mysterious world and find a way back home.
- 4
The Turing Test
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
The Turing Test is a challenging first-person puzzle game set on Jupiter’s moon, Europa. You are Ava Turing, an engineer for the International Space Agency (ISA) sent to discover the cause behind the disappearance of the ground crew stationed there.
- 5
Qbeh-1: The Atlas Cube
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Indie and Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
QBEH-1 is an atmospheric 1st-person puzzle platformer that takes players on a quest through a series of divergent worlds. Each world is filled with new puzzles that require special cubes to solve as well as fun secrets to uncover. Includes a LEVEL EDITOR and STEAM WORKSHOP support!
- 6
Gateways
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Indie with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
From the creative mind behind The Adventures of Shuggy comes an exciting new retro-styled 2D platformer, a winner of Dream Build Play 2012 and a top 50 game of 2012 according to Game Informer. Grab the gateway guns and explore a huge lab filled with mysterious puzzles in this classic platforming adventure.
- 7
NaissanceE
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Indie and Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
NaissanceE is an obscure and magical first person exploration game, a philosophical trip and an artistic experience. The adventure takes place in a primitive mysterious structure and the game mainly consists to explore and feel the deep and strong ambiance of this atemporal world.
- 8
MIND: Path to Thalamus Enhanced Edition
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Indie and Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
MIND: Path to Thalamus is a First Person Puzzler that throws you into a fantastic and surreal environment. You will bend the natural elements to your will in order to progress in this emotive, mindbending tale. Now also in Virtual Reality!
- 9
Portal
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Action with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
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.
- 10
Antichamber
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Indie and Adventure with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
Antichamber is a mind-bending psychological exploration game where nothing can be taken for granted. Discover an Escher-like world where hallways wrap around upon each other, spaces reconfigure themselves, and accomplishing the impossible may just be the only way forward.
- 11
Phantom Signal — Sci-Fi Strategy Game
Single-player alternative to .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest — playable solo, no multiplayer required. Shares Simulation with .T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest.
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.