This is what you want right here: Goblin Commander: Unleash the Horde. Made by two of the lead designers on Lost Vikings, Diablo 2, Starcraft and Warcraft 3. You control little groups of goblins and send them out to pillage and plunder other goblin clans. Each time you defeat a clan, they join your ranks, and you get to mix and match the different goblins from each clan. You have a base set up for you in each mission (which can be destroyed and repaired), but there's not much base building other than turrets you can buy to defend your base. Otherwise the focus is on action. There are two resources, gold and souls. Gold is obtained by destroying structures (almost everything in the game is destructible), and souls are obtained by killing enemy goblins. You use gold and souls together to unlock new goblin units, buy upgrades, turrets and hero-type units called titans. There's also some other nifty things like runes you can find or buy that let you cast spells, and neutral structures you can capture to give you abilities. It's a really cool little game and I highly recommend it to anyone who likes console RTS games.