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
Ion Fury
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
- 2
Deus Ex: Human Revolution - Director's Cut
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action and RPG with Core Decay.
You play Adam Jensen, an ex-SWAT specialist who's been handpicked to oversee the defensive needs of one of America's most experimental biotechnology firms. Your job is to safeguard company secrets, but when a black ops team breaks in and kills the very scientists you were hired to protect, everything you thought you knew about your job...
- 3
Deus Ex: Invisible War
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
Approximately 20 years after Deus Ex, the world is only beginning to recover from a catastrophic worldwide depression. In this techno-nightmare, take part in the dark struggle to raise the world from its own ashes.
- 4
Deus Ex: Game of the Year Edition
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
The year is 2052 and the world is a dangerous and chaotic place. Terrorists operate openly - killing thousands; drugs, disease and pollution kill even more. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider.
- 5
Blood West
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action and RPG with Core Decay.
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!
- 6
Warhammer 40,000: Boltgun
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
- 7
STAR WARS™: Dark Forces Remaster
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action with Core Decay.
The evil Empire is currently creating a doomsday army behind a veil of secrecy. However, they are no match for the Rebel Alliance's covert operations division. Your mission is to infiltrate the Empire and put an end to their plans for terror and domination.
- 8
Deus Ex: The Fall
Single-player alternative to Core Decay — playable solo, no multiplayer required. Shares Action and RPG with Core Decay.
Deus Ex: The Fall is set in 2027– a golden era for science, technology and human augmentation, but also a time of great social divide and global conspiracy. Powerful corporations have seized control from governments and command the drug supply needed by augmented humans to survive.