Single-player games like Project Three
Below are 13 single-player Steam games similar to Project Three, 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 Three page.
Ranked picks
- 1
Black Mesa
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Relive Half-Life.
- 2
System Shock 2: 25th Anniversary Remaster
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Adventure with Project Three.
System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.
- 3
Atomic Heart
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Adventure with Project Three.
In a mad and sublime utopian world, take part in explosive encounters. Adapt your fighting style to each opponent, use your environment and upgrade your equipment to fulfill your mission. If you want to reach the truth, you'll have to pay in blood.
- 4
Blood West
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Weird west legends meet eldritch horror in BLOOD WEST, an immersive stealth FPS. Become the Undead Gunslinger, doomed to roam the barren lands until he manages to purge their curse, freeing his soul. 3 varied scenarios, perk-based character progression, and 20+ hours of gameplay await you!
- 5
Project Silverfish
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Explore a hostile, living world: Uncover forgotten horrors, both man-made and supernatural, as you hunt for powerful weapons and exotic artifacts.
- 6
In Sound Mind
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
In Sound Mind is an imaginative first-person psychological horror with frenetic puzzles, unique boss fights, and original music by The Living Tombstone. Journey within the inner workings of the one place you can’t seem to escape—your own mind.
- 7
Prehistoric Hunt
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Dive into intense dinosaur hunting adventures with your friends. Complete hunting contracts for Preton Corporation. Gather rewards, improve your equipment and become a master hunter. Are you the hunter or the hunted?
- 8
DEATHLOOP
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action with Project Three.
DEATHLOOP is a next-gen FPS from Arkane Lyon, the award-winning studio behind Dishonored. In DEATHLOOP, two rival assassins are trapped in a mysterious timeloop on the island of Blackreef, doomed to repeat the same day for eternity.
- 9
Abyssal Reflections
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Indie and Casual with Project Three.
Abyssal Reflections is short Atmospheric depressing "non-jumpscare" game where you go through a total of 8 different time periods. You'll have to take care of your owners and how you relate to them is up to you.
- 10
Absolute-Full-Life
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Colourful survival horror first-person shooter with manual weapon reloading and a mystery environment. Discover every secrets in an open world full of diverse enemies and hidden locations.
- 11
Chat is Real
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
A short horror game of a few minutes, with elements of combat and fear. You play as a streamer known as "Gargamelovo let's play šílenství" He always felt like an outsider, whether at school or at work. So he started talking to chat.
- 12
Chainsaw Snuff Shots VR
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Indie and Adventure with Project Three.
Trapped in a deranged killer’s domain, you must outsmart the nightmare. The chainsaw-wielding psycho hears everything—every step, every breath. Use camera, tools, stealth, and your wits to survive. One wrong move, and the hunt begins. Will you escape, or become another gruesome trophy?
- 13
Sniper Camouflage Orange Spy Warrior I Buried Two Bodies in the Garden and the Police Haven't Figured Out Yet That They're Missing Because They Were a Lonely Old Couple Who Had No Relatives Simulator 2026
Single-player alternative to Project Three — playable solo, no multiplayer required. Shares Action and Indie with Project Three.
Sniper simulator game with sponge bob graphics