Multipeglin

Cooperative multiplayer mod for Peglin. Play through runs together with friends!

Features

Host/join cooperative multiplayer sessions of up to 4 players
Full game state synchronization (map, battles, deck, relics, enemies)
Per-player decks, relics, health, and gold in coop
Turn-based combat, ball physics synchronization
Shop, treasure, and event scene synchronization
Multiplayer save-and-continue system

Installation

Install via r2modman or Thunderstore Mod Manager.

Manual installation: Extract all DLLs to BepInEx/plugins/Multipeglin/.

Usage

Launch Peglin with the mod installed
Click "Multiplayer" on the main menu
Host: Click "Host" to start a session. It will host on Steam. Or click "Continue" if you had a previous run you want to continue with the same players.
Join: Select a hosted game from your Steam friends list and join.
All clients select their class and click Ready.
Host selects Cruciball level, and clicks start game.

State

Most of the game works. There is some slight desync possible on super complex peg layouts such as complex moving pegs, but it is 90% correct.
Some event choices don't make sense so it defaults to host choice (eg. if host selects to skip an event, but 1 player selects to do a battle, it's just going to use what the host picked)
End-of-battle shot to determine navigation let all players participate at the same time and will choose the slot that got the most hits
Most relics apply their logic correctly for the owner players shot, but some with really crazy effects might have been missed; let me know if you find anything broken
If an event is really bad and softlocks, there is a 45 second timeout after which the host will be able to select "Force continue" to force the clients to go to the next map node. There is also a 15 second timeout after a shot occurs where if there are no orbs on the board anymore it will pass to the next players turn.

Requirements

BepInEx 5 (installed via BepInExPack_Peglin)
All players must have the same mod version installed

Features

Host/join cooperative multiplayer sessions of up to 4 players

Full game state synchronization (map, battles, deck, relics, enemies)

Per-player decks, relics, health, and gold in coop

Turn-based combat, ball physics synchronization

Shop, treasure, and event scene synchronization

Multiplayer save-and-continue system

Usage

Launch Peglin with the mod installed

Click "Multiplayer" on the main menu

Host: Click "Host" to start a session. It will host on Steam. Or click "Continue" if you had a previous run you want to continue with the same players.

Join: Select a hosted game from your Steam friends list and join.

All clients select their class and click Ready.

Host selects Cruciball level, and clicks start game.

State

Most of the game works. There is some slight desync possible on super complex peg layouts such as complex moving pegs, but it is 90% correct.

Some event choices don't make sense so it defaults to host choice (eg. if host selects to skip an event, but 1 player selects to do a battle, it's just going to use what the host picked)

End-of-battle shot to determine navigation let all players participate at the same time and will choose the slot that got the most hits

Most relics apply their logic correctly for the owner players shot, but some with really crazy effects might have been missed; let me know if you find anything broken

If an event is really bad and softlocks, there is a 45 second timeout after which the host will be able to select "Force continue" to force the clients to go to the next map node. There is also a 15 second timeout after a shot occurs where if there are no orbs on the board anymore it will pass to the next players turn.