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Box art for Poppy Playtime
MODMod · 2021 · Unreal Engine 4

Poppy Playtime

PoppyCoop by romannazarov057-spec: in development, rated D (Experimental).

PoppyCoop

romannazarov057-specCo-op Anything

D
ExperimentalPrototype, research build, or abandoned before it got far.
Stage
In development
Co-op
17%
Synced
  • See each otherSynced
  • StoryNot synced
  • EnemiesNot synced
  • WorldNot synced
  • ItemsNot synced
Players say
Rate it and vote on its co-op %
Connect
Steam (no port forwarding)
Players
2
Tested
Automated tests
Features
Made with Co-op AnythingEasy join, no port forwardingOpen sourceAutomated tests
Latest release
No release yet
Last activity
Active Oct 19, 2026
GitHub stars
0
About this project

Build-from-zero UE4SS Lua mod plus a Python relay. Two real game clients over the UDP relay see each other as a player-shaped puppet (same mesh, material, scale, and a single-node walk animation) at the peer's reported position, both directions, checked by a scripted run with no crashes. Only movement is synced; the chapter cannot be finished together. The Steam transport initialises, logs on and creates/enters a lobby, but its P2P message leg is untested (needs a second Steam account). Prior art: a fan multiplayer mod was made and deleted by its author (dev confirmed on Reddit); Chapter 2 builds contain an unused multiplayer minigame documented by TCRF, and the Steam build ships the VoxeX voice SDK, so multiplayer code existed in-house. Work notes in games/poppy-playtime/.

What you need

Your own copy of Poppy Playtime.

Sources
Repository ↗Co-op Anything write-up ↗Suggest a correction

Know another co-op mod for Poppy Playtime? Submit it.