Empires, the award winning Half-Life 2 mod, combines the best of the first person shooter and real-time strategy genres. Fight as either the Northern Faction, remnants of the fallen nation of Jekotia, or as the imperial Brenodi Empire. Empires features:

a-z-k says

10/10 - Agree (5) Disagree (1)

If you like cooperative team play you need to download this game, right now.

It is true there is a steep learning curve but if you read the FAQ, get in a squad and listen to the more experienced players then you will find the community to be broadly supportive.

Easy to enjoy and hard to master, I love the depth of gameplay that simply isn't available in any other multiplayer game period.