Very fun. Co-op multiplayer, just like Dystopia, and you can choose from a variety of classes and weapons in this fun time-killing 3rd person coop shooter by valve. Fight the parasites of all sorts of the swarm and survive, completing objectives. Very fun, and it's free!

Uh.. Well, this is probably a terrible HL1 mod. No servers, terrible gameplay, hard controls, don't get it, I regret buying it.

Ahhh. The sea salty air, the beautiful ships, the ascending fights.. Half life 2: Lost coast has it all. A fun little add-on tying around coast gameplay, it takes you from a dock and a friendly fisherman, to the ruins of an old monastery. High paced action and great HDR lighting. What more could there be?