Single-player games like DEMON SIEGE
Below are 8 single-player Steam games similar to DEMON SIEGE, 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 DEMON SIEGE page.
Ranked picks
- 1
Lastbane
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Lastbane is a CO-OP asymmetric horror game. Together with your friends, you must try to escape the map silently without being caught by sound-sensitive creatures that react to microphones and in-game voice chat.
- 2
Azy
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Destroy enemies and bosses using a variety of weapons. Visit different times and places with unique enemies. Inspired by classic games from the of 90s genre.
- 3
Slipgate
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Explore the gloomy rooms of a sci-fi base as a doomed marine, the sole survivor of the portal experiment. Save humanity as you did in the 90s with your trusty shotgun, make your way through ominous corridors inhabited by the shadows of sinners and evil spirits.
- 4
IMHA
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
IMHA is a first-person shooter set on an island ravaged by a demon invasion. Battle your way through endless hordes of enemies and survive the onslaught of relentless ghouls and demons.
- 5
Project RIP
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Welcome to Project R.I.P. , control AI driven Agents in the battle against hordes of demons. Show your skills on the battlefield and on Global Leaderboards in this Singleplayer Horror Survival First Person Horde Shooter.
- 6
Left 4 Dead 2
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
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.
- 7
DUSK
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 8
Killing Floor 2
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
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.