Unlimited resources. Fast recruitment and building.
Battlegrounds 2 is a fantastic real-time strategy with loads of different units, buildings and maps with more becoming available as you play.
Here's for those too lazy to read the tutorial :
Click and drag : Select units
Double-click : Give order
Shift+Double-click : Give order when units are fighting
Control+1-9 : Create team with selected units
1-9 : Select team