Start beating the AI
Beat 10 levels against Normal or Hard AI
Beat 10 levels against Hard AI
Beat 50 levels against Normal or Hard AI
Beat 50 levels against Hard AI
Capture/infect the enemy AI Queen (without seeing solution) (the first move doesn't count)
Complete Chapter 1
Complete Chapter 2
Complete Chapter 3
Complete Pawn of the Dead
Score 50 in Queen vs Zombies Mode