Welp. It was the goddamn crash handler. Ironic. The unpacked files don’t have execute permissions. I’ve made Game executable, I’ve made nw executable, but I didn’t realise I have to do this for chrome_crashpad_handler too. Now pointing Lutris to execute nw Just Works™. And with that it still requires nspr and libXdamage as additional dependencies not covered by Lutris Runtime, but loses libnotify and gconf-2 (seriously lol, gconf-2) deps, since they’re common enough that the runtime covers them, and apparently running the game through the Game binary didn’t link to it correctly. Somehow.