Custom races
Cursed War: Reborn has a 5 custom races with full custom spells and units.
Cursed War: Reborn
OpenSource Warcraft III map on 1.26a version
Yet another Footman Wars alternative
Talents system
Cursed War: Reborn has a big list of talents with custom effects which can fully change your gameplay
Capture system
You can capture random building on mid or gold mines for increasing your income.