Single-player games like Portal
Below are 18 single-player Steam games similar to Portal, 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 Portal page.
Ranked picks
- 1
Portal 2
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
- 2
The Talos Principle
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
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
Superliminal
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Perception is reality. In this mind-bending first-person puzzler, you escape a surreal dream world through solving impossible puzzles using the ambiguity of depth and perspective.
- 4
Viewfinder
Single-player alternative to Portal — playable solo, no multiplayer required.
Challenge perception, redefine reality, and reshape the world around you with an instant camera. Viewfinder is a new single player game offering gamers hours of interesting and fun experiences while uncovering the mysteries left behind.
- 5
The Turing Test
Single-player alternative to Portal — playable solo, no multiplayer required.
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.
- 6
Q.U.B.E: Director's Cut
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Q.U.B.E: Director's Cut is the definitive version of the brain-twisting first-person puzzler. Using special high-tech gloves to manipulate cubes in the environment, the player solves an array of conundrums - from physics-based challenges; to 3D jigsaws; to platform-based trials.
- 7
Quantum Conundrum
Single-player alternative to Portal — playable solo, no multiplayer required.
Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!
- 8
The Entropy Centre
Single-player alternative to Portal — playable solo, no multiplayer required.
Think in reverse. Outsmart the impossible. A mind-bending first-person adventure where you solve ingenious and complex puzzles by rewinding objects through time.
- 9
Outer Wilds
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.
- 10
The Swapper
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
What if someone knew your mind better than you did? The Swapper is an award-winning, narrative driven puzzle game set in the furthest reaches of space.
- 11
There Is No Game: Wrong Dimension
Single-player alternative to Portal — playable solo, no multiplayer required.
There is no game. So don't go messing things up by clicking everywhere. You don’t want to be kicked out of your video game world, do you? Of course not!
- 12
Braid
Single-player alternative to Portal — playable solo, no multiplayer required.
This is the original version of Braid from 2009, which may not work well on newer systems. For an updated version of the game with nicer graphics, more levels and a large amount of developer commentary, see Braid, Anniversary Edition.
- 13
CONTROL Ultimate Edition
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Winner of over 80 awards, CONTROL is a visually stunning third-person action-adventure that will keep you on the edge of your seat.
- 14
The Stanley Parable
Single-player alternative to Portal — playable solo, no multiplayer required.
The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.
- 15
Left 4 Dead 2
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
- 16
Half-Life 2
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
- 17
Half-Life
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
- 18
Half-Life: Alyx
Single-player alternative to Portal — playable solo, no multiplayer required. Shares Action with Portal.
Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.