From e1554869028c4b626e4e3d691dad54a865a10d30 Mon Sep 17 00:00:00 2001
From: Stelios Tsampas <142770+loathingKernel@users.noreply.github.com>
Date: Thu, 9 Apr 2026 16:35:16 +0300
Subject: [PATCH] [core] check for `STEAM_COMPAT_DATA_PATH` in global settings
 too when resolving save paths (#714)

---
 legendary/core.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/legendary/core.py b/legendary/core.py
index fbb3a52..d2d8214 100644
--- a/legendary/core.py
+++ b/legendary/core.py
@@ -910,6 +910,11 @@ class LegendaryCore:
             if not wine_pfx:
                 wine_pfx = self.lgd.config.get('default.env', 'WINEPREFIX', fallback=None)
                 wine_pfx = self.lgd.config.get('default', 'wine_prefix', fallback=wine_pfx)
+            # Proton is not officially supported, but people still use it, so look for it
+            if not wine_pfx:
+                proton_pfx = self.lgd.config.get('default.env', 'STEAM_COMPAT_DATA_PATH', fallback=None)
+                if proton_pfx:
+                    wine_pfx = f'{proton_pfx}/pfx'
 
             # If we still didn't find anything, try to read the prefix from the environment variables of this process
             if not wine_pfx and sys_platform == 'darwin':