protonscr

Chompy Chomp Chomp

protonclosed appid 292570Game compatibility - Unofficial.NET.NET-XNA
ValveSoftware/Proton#9247 · opened 2025-11-23 by F1ReB4LL · updated 2026-01-08 · 4 comments · github · game page · search this game
FF1ReB4LL 2025-11-23 github

Compatibility Report

  • Name of the game with compatibility issues: Chompy Chomp Chomp
  • Steam AppID of the game: 292570

System Information

  • Steam Deck (LCD)
  • Video driver version: 4.6 Mesa 24.3.4 (git-8d0948917e)
  • Kernel version: 6.11.11
  • Proton version: 1763652710 experimental-10.0-20251120

I confirm:

  • [x] that I haven't found an existing compatibility report for this game.
  • [x] that I have checked whether there are updates for my system available.

Symptoms

A .NET + XNA 4.0 game, instantly shows an error message ("Microsoft.Xna.Framework.Content.ContentLoadException: Could not load asset Fonts/White! Error: The given key 'Fonts/White' was not present in the dictionary.") and doesn't go further.

Image

steam-292570.log

Reproduction

Install and run the game.

Mmadewokherd 2025-11-24 github

Game overrides ContrnetManager.OpenStream and expects the name passed in to be normalized (/ replaced with \), which FNA doesn't do (and probably can't in general, because it needs to work outside Windows).

BBlastBlaster17 2025-12-10 github

Game overrides ContrnetManager.OpenStream and expects the name passed in to be normalized (/ replaced with \), which FNA doesn't do (and probably can't in general, because it needs to work outside Windows).

Then... maybe Wine should? Or specifically Wine Mono. I thought it already did so by default.

Mmadewokherd 2025-12-11 github

Ah, sorry, forgot to post an update here when I pushed that change: https://gitlab.winehq.org/mono/FNA/-/commit/d657e29878df5e03170d0468430552881654b5de

I asked about this, and upstream FNA doesn't do this because of concerns about netplay compatibility between platforms (if asset names are sent over the network somehow).

FF1ReB4LL 2026-01-08 github

Seems to work fine now, closing the issue.

Nothing extracted yet.