DarkwaterRejoinFix is a BepInEx mod for Darkwater that fixes the vanilla rejoin bug where players always come back dead and stuck as a mouse during an active run.
Install this if players rejoining mid-run:
Install with a Thunderstore-compatible mod manager, or place DarkwaterRejoinFix.dll in BepInEx/plugins.
Both host and clients should use the mod for the most reliable results.
If the mod is installed on the host only, late join and rejoin handling will still work, but the rejoining player can still have client-side state desync issues such as being unable to enter the store or outpost.