Need videogame tips!

me and one friend are having a small lanparty and we need some games that we can play co op (on PC) or just some other fun games, so what do you recommend?

Age of Wonders 2

Minecraft, Chivalry, Endless Space.

ok thanx, we will check them out.

To add to the suggestions above:

Killing Floor, Orcs Must Die 2, Goldeneye Source, Magicka, Terraria, Portal 2, Alien Swarm, Left 4 Dead 2, Synergy (makes Half-Life 2 co-op).

Torchlight 2 is pretty fun multiplayer.  Team Fortress 2 has the robot wave mode "Mann vs Machine" now that's pretty fun.  And if the people you have =4, then I recommend so Left 4 Dead 1/2.  It's a good game, but when you're all in the same room screaming at each other, it's just that much better!

GTA 2 Multiplayer is also pretty fun if you look for a little distraction between more "serious" gaming sessions. Also the game Soldat