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The Seapunk is a new playable character who fights by drowning enemies, fusing cards together, and growing their power over time. Three interlocking mechanics define the playstyle:
Big thanks to Ray, Athena, Mr.Hoggboss, Candu, Tiffany, and all the other test players who helped shape the Seapunk into what it is. Your feedback was invaluable.

Gameplay
Seapunk Character mod
by WenyeZhou51v1
Play as seapunk, the little weed ball enemy from Act 1. Entwine cards together into blobs, drown enemies, and ascend the spire as seapunk. Complete with beta art, 80+ new cards, special potions and relics. Will be updated when I have time
Created
Jun 16, 2026
Updated
Jun 16, 2026
Description
Description
The Seapunk is a new playable character who fights by drowning enemies, fusing cards together, and growing their power over time. Three interlocking mechanics define the playstyle:
- Drown — stack a debuff on enemies that amplifies incoming damage, then cash it in or let it snowball
- Entwine — merge two cards into a single Blob that combines both effects and costs at once
- Grow — permanently increase a card's numbers mid-combat, letting you shape your deck on the fly
Installation Instructions
- Install BaseLib first (required dependency) — find it on NexusMods or the StS Discord
- Download SeapunkCharacterMod-v0.1.0.zip and extract it
- Place the MyCharacter/ folder into your game's mods/ directory: ...\steamapps\common\Slay the Spire 2\mods\
- Launch the game and select Play with Mods when prompted
Main Features
- New playable character: the Seapunk
- 60+ unique cards across Common, Uncommon, Rare, and Ancient tiers
- 3 relics (Starter, Rare, Ancient)
- 1 potion
- Unique keywords: Drown, Entwine, Grow, Blob
- 5 co-op multiplayer cards
- Full English and Simplified Chinese localization
Requirements
- BaseLib (latest version) — required for all STS2 mods
Shout Outs
Big thanks to Ray, Athena, Mr.Hoggboss, Candu, Tiffany, and all the other test players who helped shape the Seapunk into what it is. Your feedback was invaluable.