So I will be releasing a proxy that intercepts the packets between the rotmg client and the server in order to make cool hacks.
It has a plugin system so anyone will be able to make their own hacks and release them for it, and all the user has to do is put the hack (plugin) in the plugins folder and it just works.
There are some cool things you can do with proxies that are really really hard to do with just client mods.