like the game. been waiting for something like this, since linetower wars 7 on wc3. deffinitly could use a campaign. as well as large open maps, for creating some serious wicked mazes. maybe add towers that increase the effect of surrounding towers. such as speed, damage, even gold per kill. more levels for towers. and maybe even branched off upgrades(having different choices for each level ex:aoe tower could have persistant damage like molten ground, or massive instant damage like bomb barrage). just some ideas, like where you guys are going with this. hope updates with continue.
really good game. One thing i think you should add is in the permanent shop. Have an upgrade for 3x, 4x game speeds that cost like 100caps, 1000caps. Gives people an incentive to play longer and save up the caps. Or to use Kreds to buy caps in order to upgrade them early