Single-player games like Slime Slammer
Below are 9 single-player Steam games similar to Slime Slammer, 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 Slammer page.
Ranked picks
- 1
Path of Darkness
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Path of Darkness is a dark incremental adventure where every battle brings you one step closer to absolute power. Crush endless waves of enemies, discover the rarest artifacts, experiment with devastating builds, and unlock new layers of gameplay.
- 2
Battimals
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Battimals: Combine animal DNA and battle foes in fast-paced matches. Hilarious, strategic fun in quick play sessions. Create your ultimate team!
- 3
Transistor Defense
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Transistor Defense is a strategic tower defense game where players must fend off the onslaught of a rogue sentient AI determined to overtake the network.
- 4
Aether Keepers
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Protect the core! Don't let the demons eat it! Welcome to this addictive incremental tower defense challenge. Build and upgrade your army in real-time to get stronger and stronger. Create your invincible legion—All units move out!
- 5
Lord Clicker
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Lord Clicker combines Clicker and Tower Defense in one game. Click to accumulate gold coins and make your choice: buy populace to generate wealth on your behalf, or hire men to defend your village.
- 6
Defenders Glory
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Defenders Glory is a Fantasy Tower Defense game with simple but deep gameplay elements: Simple mechanics that allow for near-infinite ways to be applied, allowing it to be suitable to anyone, beginners can just sit down and play, while Veterans can constantly improve themselves and their tactics.
- 7
Miracle Brave: Beast Defense Line
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Endless tides of beasts crash against your fortress, yet never breach your line. Fight alongside your brave companions, reap the invaders, and grow stronger with every battle. Rise to meet the next wave with greater might—reap, strengthen, reap again. The cycle never ends.
- 8
Grumpy Gaffer
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Strategy and Indie with Slime Slammer.
Join Mr. Gaffer on his mission to protect the peace of his home in this dynamic strategy game. Test your wits and reflexes as you face intense waves of enemies, and compete in thrilling mini-games against other players.
- 9
Cozy Littlequarium
Single-player alternative to Slime Slammer — playable solo, no multiplayer required. Shares Indie and Casual with Slime Slammer.
Cozy Littlequarium is a relaxing aquarium simulator that sits at the bottom of your screen! Take care, breed them, collect and decorate!