Single-player games like DECAYED
Below are 8 single-player Steam games similar to DECAYED, 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 DECAYED page.
Ranked picks
- 1
Cepheus Protocol: Project Fenrir
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action and Indie with DECAYED.
In Cepheus Protocol Project Fenrir, players battle relentless zombie waves as elite Fenrir operatives, mastering Arcade Time Attacks and intense Horde Defense Missions with strategic weaponry and tactics. Dive into exhilarating chaos.
- 2
Resident Evil Requiem
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action and Adventure with DECAYED.
Requiem for the dead. Nightmare for the living. Prepare to escape death in a heart-stopping experience that will chill you to your core.
- 3
The Last of Us™ Part I
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action and Adventure with DECAYED.
Discover the award-winning game that inspired the critically acclaimed television show. Guide Joel and Ellie through a post-apocalyptic America, and encounter unforgettable allies and enemies in The Last of Us™.
- 4
Zombie Army Trilogy
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action with DECAYED.
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.
- 5
Left 4 Dead 2
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action with DECAYED.
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.
- 6
Killing Floor 2
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action with DECAYED.
In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.
- 7
The Last of Waifus
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action and Adventure with DECAYED.
You are playing as the last Waifu clearing out the fallen city from Infected whose only target is you.
- 8
Resident Evil 4 (2005)
Single-player alternative to DECAYED — playable solo, no multiplayer required. Shares Action and Adventure with DECAYED.
(Release: 2014) Special agent Leon S. Kennedy is sent on a mission to rescue the U.S. President’s daughter who has been kidnapped.