Single-player games like Core Decay
Below are 8 single-player Steam games similar to Core Decay, 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 Core Decay page.
Ranked picks
- 1
Deus Ex Remastered
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action and RPG with Core Decay.
This is Deus Ex Remastered – the definitive version of Ion Storm’s legendary cyberpunk immersive sim, modernized with visual upgrades, modern enhancements, and quality-of-life improvements for a new generation of operatives.
- 2
The Fortress of Dr. Radiaki - Fancy Edition
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
Experience the cult hit that doesn't quit, Dr. Radiaki is here to tickle your funny bone until it really hurts. An unapologetic sense of fun and non-stop action meets in an unforgettably bizarre adventure!
- 3
Terfenstein 3D
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
Terfenstein 3D is a short retro first-person shooter game about escaping a gender-fascist concentration camp. Unleash your pent-up fury upon the gender-critical tyrants with an arsenal of deadly weapons and tactics in cathartic bliss.
- 4
CTRLSINK
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
A submerged post-apocalyptic retro-style FPS set in a world swallowed by the ocean after a human/AI war. Blast through flooded facilities, battle corrupted machines, explore radioactive ruins, and uncover the last buried secrets of humanity’s collapse.
- 5
PARKSIDE: DECAYED SOUL MANIPULATION
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action and RPG with Core Decay.
PARKSIDE is an FPS-Immersive Sim that chronicles the future of biomechanical subterfuge and suffering. Shoot, hack, and either save or sour the future of humanity in the dystopian city of Abbotsford, California in the awful year of 2038. Will you serve the Divine Rod?
- 6
White Hell
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
White Hell is a retro-style first-person shooter set in a frost-bound Finland after the apocalypse.
- 7
Fortune's Run
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
Explore a decaying industrial world left behind in humanity's never-ending race to conquer the stars. Beneath its iron skies, desperate souls kill and steal for passage to the still-plentiful frontier worlds. Sink or swim in this high-octane first-person shooter with immersive sim elements.
- 8
SPRAWL
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
SPRAWL is a hardcore retro FPS set in an endless cyberpunk megalopolis. Escape the walled city and take on the militarized government of the sprawl. Fueled by the blood of your enemies and a mysterious voice in your head, make your way towards the spire to topple whatever lays within.