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
One More Depth
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
A fast-paced, 4-player co-op action RPG. As an orphan, dive into twisted realms to retrieve the legendary "Precious." Don't let the cute art fool you—lethal threats await in the abyss. Dual-Class Builds: Mix and match classes with diverse loot to craft thousands of unique combat styles.
- 2
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...
- 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
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.
- 5
Modavuj Save The Babies
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Save The Babies is an adventure game where you enter into armed conflicts with robots and try to overcome many platform obstacles. In 8 levels, you need to save 8 girls by overcoming obstacles that become more difficult as you progress.
- 6
Mega City Force
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Retrowave Action Roguelike featuring tough agents battling crime to the electrifying music of artists like Droid Bishop, Timecop1983, and more! Choose your agent and dive into hardcore action against enemies and bosses, utilizing a vast arsenal and special abilities that will define your playstyle
- 7
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.
- 8
Cleanup Crew
Single-player alternative to Atom Horde — playable solo, no multiplayer required. Shares Action and Indie with Atom Horde.
Fight through dangerous space stations in this 2d Bird's eye rougelike dungeon crawler! Clean up as many stations as you can!