Weird one to work with. the norgame_style tag is mostly required, however you need other tags in addition to that one depending on what you want to see. adding the "standing" tag can produce images of lone characters, most training images involved sex so adding the sex tag can also work as a trigger. Also monster and eldritch abomination can create similar looking creatures from the game. Experiment at your leisure. Also add torn clothes to the negative if you don't want torn clothes.