@DarthBenedict and @Christian, Thanks for your comments! Yeah the trailer focuses on the micro level play which is very much like multiple TD maps. We didn't have a lot of the macro in at the time, which is air defence, fighter attacks in between creep levels and such. You're able to build turrets at a meta level to limit the number of successful carriers landing on these TD maps. Hoping to get that in the next video.
What we hope sets it apart is there's multiple maps to defend at once, and a few other unique game features.
Our current issue is finding a good balance, tends to get too difficult too soon, or easier layer on. Almost found the right numbers though.