diff --git a/src/citron/main.cpp b/src/citron/main.cpp
index f1e7b39d6..7ce45a2a8 100644
--- a/src/citron/main.cpp
+++ b/src/citron/main.cpp
@@ -6215,13 +6215,23 @@ int main(int argc, char* argv[]) {
 
     QCoreApplication::setAttribute(Qt::AA_DontCheckOpenGLContextThreadAffinity);
 
-    const bool is_gamescope = qgetenv("XDG_CURRENT_DESKTOP") == "gamescope";
+    // Gamescope/Steam Deck detection
+    const bool is_gamescope = qgetenv("XDG_CURRENT_DESKTOP") == "gamescope" ||
+    !qgetenv("GAMESCOPE_WIDTH").isEmpty() ||
+    !qgetenv("STEAM_DECK").isEmpty();
+
     if (is_gamescope) {
+        // Force the environment to ignore the Deck's high-density screen
+        qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "0");
         qputenv("QT_ENABLE_HIGHDPI_SCALING", "0");
         qputenv("QT_SCALE_FACTOR", "1");
-        qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "0");
         qputenv("QT_FONT_DPI", "96");
 
+        // Force Qt to use a 1:1 pixel ratio
+        // These MUST be set before the QApplication app(...) line
+        QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+        QCoreApplication::setAttribute(Qt::AA_Use96Dpi);
+
         QCoreApplication::setAttribute(Qt::AA_DontUseNativeMenuBar);
         QCoreApplication::setAttribute(Qt::AA_DontUseNativeDialogs);
         qputenv("QT_WAYLAND_SHELL_INTEGRATION", "xdg-shell");