The Protectors of Etheria is a stand-alone mod of the game Warlords Battlecry 3 (i.e. it can be run without having the original game installed - 100% free full game). It is an improved RTS/RPG game with new campaigns, quests, terrain, units, items, heroes, modding features and more. Beta versions available for download!
Improved interface
It's getting better and better. By the way: How hard is it to get new gfx ingame?
Rather easy if you have the proper tools and are accustomed to infinite interactive ways of programming - which I personally have been doing for 5 years now. The hardest part is to match your designs with the already existent gfx.