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

CRYPTARK
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.
- 2

The Forest
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 3

The Beast Inside
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment.
- 4

Hyper Light Drifter
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
- 5

Monaco: What's Yours Is Mine
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
Monaco: What's Yours Is Mine is a single player or co-op heist game. Assemble a crack team of thieves, case the joint, and pull off the perfect heist.
- 6

Hacktag
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
Hacktag is a fast-paced two-player co-op stealth-game with unique asymmetric gameplay. Play as the stealth Agent in the field or as the virtually-infiltrated Hacker and work together to carry out espionage missions where nothing goes as expected!
- 7

UFO 50
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
UFO 50 is a collection of 50 single and multiplayer games that span a variety of genres, from platformers and shoot 'em ups to puzzle games, roguelites, and RPGs. Our goal is to combine a familiar 8-bit aesthetic with new ideas and modern game design.
- 8

Rampage Knights
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Indie with Project X.
Rampage Knights is a cooperative beat 'em up game mixed up with randomized dungeon crawling and exploration, which you can play alone or with a friend online.
- 9

The Lift
Single-player alternative to Project X — playable solo, no multiplayer required. Shares Action and Adventure with Project X.
Max is a troubled teenager forced to deliver pizza. When the elevator gets stuck between floors, he finds himself trapped — caught between his past and future. To ascend, he must uncover missing buttons and confront the fears that pursuing him