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
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.
- 2
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.
- 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
Barricade
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Barricade is a wave-based zombie FPS with a 90s aesthetic. Use physics props to build barricades and defend against zombies. Balance building, shooting, and repairs while spending money on weapons, upgrades, and defenses.
- 5
KILLBOUND
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
A brutal boomer shooter inside a collapsing cosmic prison. You are a bound executioner sent to restore containment. Engage in the skill-based, fast-paced combat and eliminate the corrupted enemies. Strike harder, and survive the Fold. Inspired by classic '90s games.
- 6
Last Day: Zombie Survival VR
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
A stranger, who awakens in a room with no recollection of how they got there, soon discovers they're pawns in a deadly game perpetrated by a notorious unknown person.
- 7
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.
- 8
Nasty Zombies
Single-player alternative to DEMON SIEGE — playable solo, no multiplayer required. Shares Action with DEMON SIEGE.
Team up with up to 4 players and take on endless waves of Nasty Zombies in a high-intensity, movement-focused boomer shooter. Use agility and smart positioning to survive semi-procedural maps and unlock permanent upgrades like Blessings, Miracles, and cosmetics.