Slay the Spire II Unlimited Mod v0.5.4

                    
Slay the Spire II officially caps multiplayer lobbies at just four players. However, your full friend group should never have to sit out of a run. The Slay the Spire II Unlimited mod completely removes that hardcoded restriction. Consequently, you can now host multiplayer sessions with as many players as you want. Furthermore, you control the exact player limit directly from the in-game settings menu.
What’s Included

Removes the hardcoded 4-player multiplayer cap entirely.
Allows you to host lobbies with any number of players.
Adds a Max Players setting under the Général tab in the Modding settings menu.
Optional: Works alongside UnifiedSavePath to share the same save file across modded and unmodded sessions.

Why You Need This Mod
The 4-player cap feels unnecessarily restrictive for a roguelike this fun. This mod instantly opens the door for larger group sessions without any complex setup. Moreover, the in-game settings integration makes adjusting your player limit incredibly straightforward. Consequently, larger groups can finally enjoy full cooperative runs together without leaving anyone behind.
How to Get Started

First, optionally install UnifiedSavePath to keep your saves unified across modded and vanilla sessions.
Next, create a mods/ folder inside your Slay the Spire 2 installation directory if one does not already exist.
Download and unzip the Sts2Unlimited.zip file into a new Sts2Unlimited folder inside that mods directory.
Launch the game and click Yes when prompted to load mods.
Finally, open Settings → General → Modding and set your preferred Max Players value.
To uninstall, simply delete the Sts2Unlimited folder from your mods directory.