mrstickball on 01 June 2008
NewGrounds has one of the better TD groupings out there.
My favorites? Bloons TD 2, Onslaught 2 (made it to wave 500!), and Xeno Tactic. The Last Stand, if considered a TD, is very awesome as well.
My girlfriend is addicted to Onslaught 2 as well.
Back from the dead, I'm afraid.