This is a good game, but how about making a fifth one that not only has a story mode but an online multiplayer where you make your armies go head to head with others?
I have completed the game! here is a tip on how to beat all of the challenges and the final one: goblin madness: to beat black goblin use meteor strike or have sky dragon to kill it. Stop the Bigbang: use timestop and disable all titans Last level get your titans under titan lordd with shield
angel in last level beat it by sending your titans past it + this
people here is a very handy tip: if you dont know how to unlock green people just lvl up viegraf the red to lvl 3 to unlock cassandra, then buy all her units to get the last hero, kara the slayer, which is totally awesome. Oh and to beat the black goblin in lvl 13 you need sky dragon it is the only unit that can harm it. + this to make this go up to help others