The gold building is unable to build.... how to get gold!!!
Edit: That only happens in dare-devil mode. Nice game, some english errors thou.
I like the way it is right now, its fun as its something new i would never had thought of.
For improvement, maybe get the option to choose the time interval in between the waves, or maybe have some special events during the game, for example like 4-way stampede, or 2 way stampede, GOLD COIN/LUMBER event (where you run out of your base and get the gold coin before the timer runs out and the next wave comes).
Still, good job for the nice mini-game.
Revives work, but you cant revive if there are no other players left.