There's a demo of Black Sea Studios's WorldShift out so you can have a little dabble with the PC RTS game.
"WorldShift is a next-gen cyber-fantasy RTS game designed to be quick and very easy to learn and play. It offers hectic, fierce encounters all around the Earth and a fascinating story uncovering ancient secrets about the true nature of the Shard and the Plague. But also, WorldShift introduces many features new to the genre, like modifiable factions, unique cooperative multiplayer gameplay, and more", the developer's said of the game previously.
The demo weighs in at 660MB and you can download it here.