Changelog

1.0.0 — Version 1.0, Public Beta

First public Beta of SULFUR Together, a co-op multiplayer mod for SULFUR.

This is a public test build. The core loop works end-to-end, but many systems are still being polished — expect rough edges. Every player must run the same version of SULFUR and of SULFUR Together.

New since the early preview:

• In-game connect menu — set up and join sessions from Options → SULFUR Together. No more editing config files.
• Steam connectivity — invite friends / join by Steam ID, no port forwarding needed (works alongside Direct IP).
• Direct IP — host shows its LAN address; clients join with address + port + key.
• 14-language localization for all on-screen text (via SULFUR Native UI Lib).
• Friendly fire as a host-authoritative session setting.
• End-of-run stats cards on the return-to-hub screen.
• Join / leave toasts and a live player list.

Working:

• Host-authoritative networked sessions over LiteNetLib.
• Synced level generation / seeds and scene transitions.
• Remote player proxies, held weapons, and projectiles.
• Enemy state mirroring; host-authoritative enemy damage, deaths, and ranged attacks.
• Downed / revive / death co-op flow with an on-screen rescue prompt.
• Boss-encounter authority for several bosses (Cousin, Witch, Lucia, Desert boss, …).
• Synced destructibles and world item drops.
• Independent per-player character, inventory, equipment, progression, and save.
• No-pause multiplayer (the world keeps running while menus are open).

Known issues:

• Clients that load a boss level ahead of the host can desync (e.g. Cousin "infinite dialogue").
• Some enemies may briefly snap, teleport, or animate incorrectly.
• Bosses beyond the tested set may have gameplay-affecting sync problems.
• Blood, particles, sounds, and some animations are not always synchronized.
• Sessions with 4+ players are untested; 2 players is the most predictable.

Dependencies: BepInEx 5, SULFUR Native UI Lib 0.10.1 (both installed automatically through Thunderstore / Gale).

⚠️ Public Beta — expect bugs. Back up your saves. Report issues on GitHub (not Thunderstore, which has no bug tracker). Host and all clients must run the same mod version.