Build more than 50 walls in a single player level.
Finish the first campaign level.
Reach the maximum worker cap.
Reach the maximum attack unit cap.
Join your first online game.
Total kills greater than 5,000
Assist another player in co-op.
Win an online "vs" match.
After your base has been significantly damaged, destroy the enemy base.
Complete the campaign on any difficulty.
Win a 4 player "vs" game.
Win 20 online "vs" matches.
