RTS with good play options, and teams. a historical LAN, and online multiplayer game. DLC avalable, not required.

if you can get a local server up (plenty of guides on how), then this is a very good game to play with friends. free to play survival game, with zombies

cheap game, built in the source engine by Valve. good game for both online and offline play. trading in the market is also available. good multiplayer.

hosts up to 8 players, RTS game based in an apocalyptic future. good game for small LAN parties, experience is improved with the Kanes Wrath expansion.

more zombies and team gameplay. if everyone is willing to pay for it (and meets system requirements) then this is a game to get

great for LAN gaming. want a team deathmatch or so on then multiplayer. coop campaign. and Nazi Zombies

is quite similar to the counter strike series, except based in the old west, and is free (built on source engine as well). online is also available!!!!

can support up to 8 players in a match, is a nice game for a small number of people at your LAN party, although no online multiplayer is available.

supports a good amount of players, and can encourage teamwork as you all go through the coop campaign together, while trying not to kill each other.