I remember playing zombie master, a half life 2 mod on a lan party and being blown away by the mechanics. Also ,the hidden, was a new experience for me.

In zombiemaster one player plays against the rest and has a well… Real time strategy layout and spawns and controls different kind of zombies . The other players have to complete tasks and survive.

In ,the hidden, one player controls a almost invisible super strong rouge experimental super soldier against the special forces of iris .