Single-player games like Slime Reaper
Below are 10 single-player Steam games similar to Slime Reaper, 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 Reaper page.
Ranked picks
- 1

Karma Keepers
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
A chill idle/incremental strategy game where you restore souls, build a Faith economy, automate more of your realm, and rebirth for permanent progress before corruption takes over
- 2

My Army Getting Stronger
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
A short relaxing incremental auto-battler where you grow an unstoppable war machine and grind your way forward through enemy territory. No stress, no micromanagement — just growth, upgrades, and glorious mass battles.
- 3

Resettle
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
Resettle is a deep incremental city builder where you develop settlements on islands. Strategically place buildings to maximize resource production, explore 10 different upgrade systems, and create a thriving island city.
- 4

Build a Cat Tower to reach the Fish
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
A short incremental game about building a Cat Tower to reach the Fish. Unlock new cats, each with their own color and special ability. Stack them higher and faster for even tastier fish.
- 5

Bills Must Be Paid
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie with Slime Reaper.
You're broke, smash piggy banks, bills must be paid. A short active incremental game. Get money, upgrade, and get debt free!
- 6

Crownhold
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie with Slime Reaper.
Noble Rulers — grow your realm and expand your castle in this short incremental game! Manage resources, discover foreign lands and build up an army to lay siege to your enemies.
- 7

Increbraintal
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Casual with Slime Reaper.
Protect your brain from viruses in Increbraintal, an incremental auto battler. Build your team and unlock upgrades in the Skill Tree to eliminate the contamination taking over the body.
- 8

Garbage Growth
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
Garbage Growth is a short incremental trash game about collecting people's trash, bananas and even babies, to make money and pollute the world even more. Hire rats, grow your pollution, and make everything worse!
- 9

Defenders Guild
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie with Slime Reaper.
Defenders Guild is a classic tower defense game. Create different strategies for each map, choose a team of adventurers that best fit your playstyle. Leave them free or assign each one priority enemies.
- 10

Roll & Reign
Single-player alternative to Slime Reaper — playable solo, no multiplayer required. Shares Indie and Casual with Slime Reaper.
Roll & Reign is a turn-based roguelike deckbuilder. Build a city from scratch while paying tribute to the emperor. Manage your dice rolls, upgrade or modify them, and choose the most suitable buildings for your strategy.