MultiplayerSaveSlots

Description 

Multiplayer Save Slots adds a host-side save picker for Slay the Spire 2 multiplayer. It lets the host keep separate Standard, Daily, and Custom multiplayer campaign saves for different groups or themed runs, instead of every hosted run competing for the same vanilla co-op save file.

Use it to continue a run with one group, start a separate run with another group, rename runs, archive old slots, restore archived slots, or permanently delete saves you no longer want.

Currently this mod has been tested in a small live multiplayer session with a couple of rounds. Testing is still limited, so please treat this as an early public-testing release. Bug reports are welcome, especially for save switching, archive/restore/delete, lobby roster warnings, modded characters, unusual mod lists, or behavior after a Slay the Spire 2 update.

Installation Instructions 

1. Download MultiplayerSaveSlots.zip.
2. Extract the included MultiplayerSaveSlots folder into your Slay the Spire 2 mods directory.
3. Launch Slay the Spire 2 with mods enabled.
4. Open Multiplayer -> Host.

How To Use

1. Open Multiplayer -> Host.
2. Choose `Standard`, `Daily`, or `Custom`.
3. The Multiplayer Saves picker opens before the normal host flow continues.
4. Choose Start New Run to create a separate managed campaign save, or select an existing save and press Continue.

Main Features 

• Separate host-owned multiplayer save slots per game mode.
• Save picker after Multiplayer -> Host -> Standard/Daily/Custom.
• Start new managed multiplayer campaigns or continue existing ones.
• Rename save slots for easier organization.
• View roster, character, progress, last-played, and short save-id details.
• Archive and restore saves you want out of the main list.
• Permanently delete active or archived saves with confirmation prompts.
• Recovery prompts for unmanaged or unsynced active multiplayer saves.
• Compatibility warning if the loaded lobby players do not match the selected campaign roster.
• Character icons from Slay the Spire 2 when available, with fallback badges for unknown or modded characters.

 Requirements/Compatibility 

• The host must install this mod.
• Guests do not need this mod for save-slot management, but they may want it installed if they also plan to host their own multiplayer saves.
• Includes optional compatibility with `RemoveMultiplayerPlayerLimit`. If that mod is installed and its host flow matches the supported version,  Multiplayer Save Slots opens the save picker first and then resumes the larger-lobby host flow.
• `RemoveMultiplayerPlayerLimit` is not required.

Source Code

https://github.com/jadistanbelly/sts2-multiplayer-save-slots