Activision has released a playable demo of its accessible Xbox 360 team-based shooter, Enemy Territory: Quake Wars, on Xbox LIVE Marketplace.

We haven't downloaded the demo ourselves, but presumably you'll be given the chance to sample the action from either side of the battle - the human Global Defence Force or the invading alien Strogg army.

We're quite fond of the game at and it's certainly one of the more accessible games of its type.

For more on the game check out the Quake Wars game page. Alternatively check out the VideoGamer Show where the game is featured in the quick reviews section.