currently we've only got Ghost recon & Red Alert and they are starting to get a bit boring unfortunately he's a bit young for doom3

and doesn't like the pink guys on doom II !
soo.. any good sugestions for lan games that I can play with a 7 year old preferably abandonware or freeware, they can't be too complicated and preferably would have an option to have 1-2 easyish computer players
he has a ps2 as well but it's only set up on a 14'' portable! so not very easy to play multiplayer