Single-player games like Atom Horde
Below are 8 single-player Steam games similar to Atom Horde, 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 Atom Horde page.
Ranked picks
- 1
Escape From Z
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Make your way through a crumbling, zombie-infested building. Each floor is different. Every decision matters. If you can escape...
- 2
Bug Drop
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Fight, upgrade, and survive in a fast-paced top-down action roguelite where 20 unique heroes with special traits, weapons and abilities take on the swarm of alien bugs.
- 3
Iron Core: Mech Survivor
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Casual with Atom Horde.
100 years after a nuclear apocalypse, an AI-managed shelter and its guardian mechs await human survivors. The shelter’s reactor creates safe zones to improve living conditions. Players control mechs to gather reactor fuel, fend off mutants, complete missions, and protect survivors.
- 4
Compadrone: Land Wars
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
In this fast-paced roguelite arena shooter with tower-defense twists, control a drone capable of wielding multiple weapons and fight hordes of alien warbots. Collect resources and XP to unlock new weapons, towers, abilities, and drones.
- 5
Disaster Plan Z
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Disaster Plan Z is a hardcore single-player shooting survival game set in a post-apocalyptic world. Players need to utilize various weapons along with their unique skills, construct different buildings, and continuously upgrade to resist the invasion of countless zombies and mutant creatures.
- 6
Looter Survivors
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Looter Survivors blends survivors-like combat with hack-and-slash loot. Build around randomized gear effects, summon a massive army beside your hero, and fight horde against horde in a compact roguelite designed to be cleared in about 10 hours by focused players.
- 7
Apocalypse Survivors
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
As the savior of the apocalypse, take up your weapons and unleash your powers. Rescue survivors, confront waves of zombies, and through relentless searching, become an immortal warrior. Write your own glorious legend in this plague-ridden hell.
- 8
Protocol : Kill Switch
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Survive the mainframe in this Digital-Noir roguelite. Outrun the Magenta Corruption, overclock your code at risky Shrines, and fight alongside your upgraded DAEMON. Master high-voltage weaponry to clear swarms of predatory logic. In this arena, you aren't a bug—you’re the virus.