CrossversionEnabler
This mod allow you to play with players on different versions.
About this mod Author’s original text
PeakCrossVersion
Author: kirigiri
Version: 1.0.0
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
🔧 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.
Install & use Install: BepInEx plugin
- The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
- Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
- Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
- Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.
Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.
Install these first, or the mod will not work: