The Watcher – Mod – Playtest

Name: The Watcher – Mod – Playtest
Availability: InStock
Author: VortexModder

by VortexModder Jun 9, 2026 v1.0

Admin Approved Trusted Uploader

Files

Main File - Version v1.0 Latest

Jun 9, 2026 17 MB

Changelog:

Initial release

Download

Description

The Watcher – Mod – Playtest

This mod brings The Watcher from the original Slay the Spire into Slay the Spire 2, recreating her mechanics, playstyle, cards, relics, and stance system as faithfully as possible.

Content

Cards

All 83 Watcher cards from her original card pool
10 colorless/token cards tied to her mechanics
Associated status effects and powers

Stance System

Wrath – Doubles damage dealt AND damage taken
Calm – Grants energy when leaving the stance
Divinity – Greatly increases damage output

Relics

8 original relics unique to The Watcher from Slay the Spire 1
Includes Pure Water → Holy Water upgrade at Ancient Orobas

Animations & Effects

Hit and idle animations imported from Slay the Spire 1
Selection screen animation
High-quality VFX and SFX for all stances (created by Chaendizzle)

Localization

Supported languages:
English, Korean, Chinese, Japanese, Italian, Russian, German

How to Install

Download the latest version of The Watcher mod and the correct BaseLib version:
BaseLib on GitHub
Navigate to your Steam game folder:
- Windows:
  C:\Program Files (x86)\Steam\steamapps\common\Slay the Spire 2
- Mac:
  /Users/<UserName>/Library/Application Support/Steam/steamapps/common/Slay the Spire 2/SlayTheSpire2.app/Contents/MacOS/
Create a mods folder (if it doesn’t exist)
Inside mods, create two subfolders:
- BaseLib — place BaseLib.dll, BaseLib.pck, and BaseLib.json here
- Watcher — place Watcher.dll, Watcher.pck, and Watcher.json here

Folder structure:

text

Slay the Spire 2\

└── mods\

    ├── BaseLib\

    │   ├── BaseLib.dll

    │   ├── BaseLib.pck

    │   └── BaseLib.json

    └── Watcher\

        ├── Watcher.dll

        ├── Watcher.pck

        └── Watcher.json

Launch the game — mods should load automatically

Development Notes

Character modding for Slay the Spire 2 is still challenging and requires extensive base game patching. Many systems needed to be modified or extended before full character implementation was possible. This means bugs or issues are more likely than with simpler mods.

If you encounter problems, report them via:
GitHub Issues / Pull Requests

⚠️ Important Warning

Vanilla Slay the Spire 2 does not support modded save files well.

BaseLib handles most save compatibility issues
If you experience problems:
1. Disable The Watcher mod first
2. Load the game
3. Then disable BaseLib

If that doesn’t work, you may need to delete save files containing modded characters before removing the mod, such as:

text

%appdata%\SlayTheSpire2\steam\<your_steam_id>\modded\profile1\saves\current_run.save

For this reason, it is strongly recommended NOT to use UnifiedSavePath or similar mods alongside The Watcher.

Source:
GitHub – lamali292/WatcherMod