

CrossversionEnabler
This mod allow you to play with players on different versions.Details
PeakCrossVersion
Author: kirigiri
Version: 1.0.0
Thunderstore Package ID: kirigiri-peak-crossversion
📌 Description
PeakCrossVersion is a BepInEx plugin that enables players on different game versions of Peak to connect and play together.
It bypasses version restrictions in matchmaking and Steam lobbies, allowing for cross-version multiplayer — ideal for playing with friends who haven’t updated (or have intentionally stayed on an older version).
⚠️ Important: All players in the session (host and clients) must have this mod installed for compatibility to work.
⚙️ Features
- ✅ Force custom Photon matchmaking version
- ✅ Add version info to Steam lobby metadata
- ✅ Allow joining lobbies even with version mismatches
- ✅ Compatible with lobby invites and multiplayer flow
📦 Installation
- Install BepInEx to your Peak game folder.
- Download this mod.
- Place the
PeakCrossVersion.dll
file into:
BepInEx/plugins/PeakCrossVersion/
- Launch the game.
Optional: Use this mod to bypass the update message on older version https://thunderstore.io/c/peak/p/kirigiri/PeakVersionBypass/
🔧 How It Works
This mod modifies the following:
- Photon: Forces custom
GameVersion
(kirigiri.1.0.a
) for matchmaking - Steam Lobby:
- Tags created lobbies with the custom version
- Bypasses version mismatch popups when joining
- Host Launching: Ensures proper scene loading even across versions
⚠️ Compatibility Rules
- ✅ You can play with others on older or newer versions
- ✅ Everyone in the session must have the mod installed
- ❌ You cannot connect to vanilla clients or servers without the mod
- ❌ This mod does not downgrade or patch game assets — version desyncs may still cause instability if game content changed
💬 Notes
- If the game version changes assets (e.g. maps, scripts), cross-version gameplay may have bugs or crashes.
- Always ensure both players use the exact same mod build to reduce risk.
🧪 Known Limitations
- Version mismatch UI is suppressed, but content mismatches still apply
- Only intended for casual/private use — don’t abuse in public lobbies
✅ License
MIT License — free to modify, fork, or redistribute with credit.