Single-player games like Slime Wars
Below are 8 single-player Steam games similar to Slime Wars, 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 Slime Wars page.
Ranked picks
- 1
Ace Breakout
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
A top down shooter game fighting against large swarms of insects alone, or recruit friends to fight along side you! Buy and craft new equipment to help you rid the world of the swarm!
- 2
BattleWars
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action and Casual with Slime Wars.
BattleWars is an in development online casual shooter where you can play how you want on a variety of gamemodes.
- 3
Gum Squad
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action and Casual with Slime Wars.
Gum Squad is a co-op PvE shooter set in a quiet world gone sticky. Start with a peashooter, explore together, and gear up to survive the gum epidemic with up to 8 players!
- 4
Half Alive
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
Half Alive is a low poly wave-based survival game where every decision matters. Face hordes of zombies solo or in co-op, tackle unique challenges, and customize your arsenal. Fight, adapt, and survive.
- 5
Around Us : Zombie Shooter
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
Around Us is a co-op zombie shooter where survival gets harder with every wave. Blast through hordes of unique zombies and deadly bosses, unlock powerful weapons and upgrades, and see how far you and your squad can really go. Think you can reach a wave no one else ever has?
- 6
Mumagi: Stellar Saviors
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
Mumagi: Stellar Saviors is a challenging co-op bullet heaven where you can gather up to 4 players to take down celestial forces. Choose a magical girl, enhance your powers, and restore time and space to their natural order!
- 7
Nienix: Cosmic Warfare
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
Search for the legendary lost artifact Nienix through galaxies in conflict! An open world space action RPG adventure that can be played both alone and together!
- 8
SYNTHETIK 2
Single-player alternative to Slime Wars — playable solo, no multiplayer required. Shares Action with Slime Wars.
SYNTHETIK 2 is a unrelenting tactical-shooter rogue-lite. Play alone or with friends. Loot powerful tech. Experience the next level in gun-play. Upgrade your androids to rival the machine gods!