so i killed Melvin the halfling, got the reds, got the smelter, went through the hell portal, got stuck, left, got to the elven forest, got the greens, and now i'm stuck again because i don't have blues, who for some reason are the only ones that can swim. also, how do i get a mistress for my tower? overlord is a very fun RTS with cartoony graphics and nerdy humor. you should try it.