Single-player games like Project Silverfish
Below are 15 single-player Steam games similar to Project Silverfish, 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 Silverfish page.
Ranked picks
- 1
Where Dolls Hang
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
Where Dolls Hang is a survival psychological horror game where you investigate a place plagued by strange and unsettling events filled with hanging dolls. Explore dangerous locations, gather evidence, uncover hidden secrets, and use your boat to confront the unknown as you search for answers.
- 2
Seclusion
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
The walls listen...
- 3
MOULD
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
MOULD is an adventure horror game about a shattered Soviet dream. The Earth is slowly becoming uninhabitable, humanity is gone, and its place has been taken by a monstrous life form, capable of surviving in the planet's new conditions.
- 4
Phantom Line: Prologue
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
Experience the beginning of the nightmare. Phantom Line: Prologue is a co-op (1-4) tactical shooter set in a war-torn Europe with paranormal events. Contain monstrous anomalies, navigate nuclear chaos, and test your squad's survival before the full mission begins.
- 5
Phantom Line
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
Join the paranormal SWAT. PHANTOM LINE is a co-op (1-4) shooter set in the post-nuclear European continent. Your mission is to search and contain paranormal events and activities (anomalies) hidden from the public eye, in an open world map full of dynamic events.
- 6
Subsurface
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
A 1–4 player co-op underwater horror game where you and your crew descend into the depths, recover valuable resources, meet your quota, and survive whatever lurks below.
- 7
Skin Deep
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
Skin Deep is an immersive first-person shooter. We got sneezing. We got things getting stuck in your feet. Stalk through a vast non-linear starship and sneak, subvert, and sabotage to survive in this stellar sandbox. You're outnumbered, outgunned, and have no shoes. Welcome to Skin Deep!
- 8
System Shock 2: 25th Anniversary Remaster
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Adventure with Project Silverfish.
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.
- 9
Stalker
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Indie and Adventure with Project Silverfish.
The background story of "Stalker" is that a teenager encounters various events on the road following a young girl. The teenager(player) can selectively interact and give repairs / help due to these events. How you will lead to different ending. The game was developed during the Global Game Jam 2020.
- 10
ADACA
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
A Sci-fi FPS set on the mysterious planet ADACA. - Use your GRAVITY-MANIPULATING arm to HURL objects at your foes or even RIP weapons directly from their hands! - EXPLORE and manipulate the environment in this EERIE and HOSTILE world!
- 11
Fallout: New Vegas
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action with Project Silverfish.
Welcome to Vegas. New Vegas. Enjoy your stay!
- 12
Zombie Army Trilogy
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action with Project Silverfish.
The cult horror shooter series comes to an apocalyptic conclusion with an epic new third chapter, a heart-pumping new horde mode, and remastered editions of the best-selling Nazi Zombie Army 1 & 2.
- 13
Ready or Not
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
Ready or Not is an intense, tactical, first-person shooter that depicts a modern-day world in which SWAT police units are called to defuse hostile and confronting situations.
- 14
ULTRAKILL
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action and Indie with Project Silverfish.
ULTRAKILL is a fast-paced ultra-violent retro FPS that combines the skill-based style scoring of character action games with the unadulterated carnage inspired by the best shooters of the '90s. Rip apart your foes with varied destructive weaponry and shower in their blood to regain your health.
- 15
Metro Exodus
Single-player alternative to Project Silverfish — playable solo, no multiplayer required. Shares Action with Project Silverfish.
Flee the shattered ruins of the Moscow Metro and embark on an epic, continent-spanning journey across the post-apocalyptic Russian wilderness. Explore vast, non-linear levels, lose yourself in an immersive, sandbox survival experience, and follow a thrilling story-line that spans an entire year in the greatest Metro adventure yet.