diff --git a/desktop_version/src/Unreachable.h b/desktop_version/src/Unreachable.h
new file mode 100644
index 00000000..d37db95d
--- /dev/null
+++ b/desktop_version/src/Unreachable.h
@@ -0,0 +1,17 @@
+#ifndef UNREACHABLE_H
+#define UNREACHABLE_H
+
+#include <SDL_stdinc.h>
+
+SDL_NORETURN SDL_INLINE void VVV_unreachable(void)
+{
+    /* __builtin_unreachable() and __assume(0) execute undefined behavior.
+     * Otherwise, a noreturn function returning is also undefined behavior. */
+#if defined(__has_builtin) && __has_builtin(__builtin_unreachable)
+    __builtin_unreachable();
+#elif defined(_MSC_VER)
+    __assume(0);
+#endif
+}
+
+#endif /* UNREACHABLE_H */