Thief 2 - The Metal Age, Multiplayer
It looks like normal Thief 2, but there can be more players cooperating. If you couldn't manage to pass some missions, dont use Ctrl+Alt+End, but tell your experinced friend to play with you! He will show you secrets, pick ups and others... Sounds good, isn't it? You can put as much money as you need for the beggining of mission and choose whichever you want, so you don't have to play from beggining.
Page, where from you can download this little patch for Thief 2 - TMA:
http://thief.procyonserver.com/index.php?page=downloads