Nate escribió1) Polygon packing would be great, but it's quite complex. Even rectangular bin packing is NP hard.
N is not that big in our cases. Unity and TexturePacker already have it, but I dont know which algorithm they are using. Did you at least investigate it?
Nate escribió2) What benefits are there to putting Spine on Steam? What Spriter does is not interesting for us.
I thought you'll be able to sell stuff in regions, but I dont know if its possible to sell periods and not whole app.
Nate escribió3) I understand the difference in economies between the US and eastern Europe (I live in Croatia). However, it's difficult to make discounts fair, especially for a lifetime license. Unfortunately we haven't been able to come up with a reasonable solution.
Make it yearly, like texturePacker. Even JetBrains doesnt sell life-time licenses anymore.