Planned Release Date: Sep 17, 2026

About This Game

MERGE SLIMES. HOLD BACK THE SWARM.

The pen is filling with larvae, and your slimes attack automatically from outside the fence. Summon random slimes, drag them into position, and merge two of the same grade to create a stronger one. A modest defense line soon becomes a screen-filling battle against a relentless swarm.

BUILD YOUR OWN DEFENSE

Discover 111 unique pixel-art slimes across 12 grades, from F to XXX. As grades rise, new attack styles become available—from single shots, piercing rounds, and spread fire to flames, lasers, explosions, and rocket barrages. Every merge can change the resulting type, so adapt your formation as it grows.

RUNES AND REBIRTHS

Equip up to 16 runes and combine eight effect types, including damage, attack speed, critical hits, range, gold gain, boss damage, overdrive charge, and rebirth-point gain. Rebirth returns stage progress to 1-1 and grants points for drawing more runes, while your slimes, gold, and summon cost remain intact.

OWN, TRADE, AND COMPETE ON STEAM

Move eligible high-grade slimes and runes to your Steam Inventory and trade supported items with other players. Compare stage-and-round progress on the Steam leaderboard, and talk with other defenders in global or language-based Steam lobby chats.

KEY FEATURES

• 111 individually illustrated slimes
  
• 12 grades from F to XXX with simple two-unit merging
  
• Seven attack styles that open up as grades rise
  
• Five rounds per stage, escalating swarms, and bosses that summon mini larvae
  
• Eight rune types and a 4×4, 16-slot equipment grid
  
• Rebirth progression that preserves your slimes, gold, and summon cost
  
• Steam Inventory integration, supported player trading, leaderboards, and lobby chat
  
• Interface support for 13 languages

Steam Inventory, trading, leaderboard, and lobby chat features require a Steam connection.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

UI