Rumble Fighter offers some clothes that give no benefit
Currently AQWorlds does. EDIT: Oh nvm, it's been said already
Lost Saga. I think they have some event with the GMs now in fact.
AQWorlds by Artix Entertainment.
Aeria Games & Entertainment does.
AQWorlds... :) I didn't really like RS when I started playing it a few years ago anyway. Also, that screenshot was from AQW Beta.. so, its not...