Yes the skill tree is procedural and I am also revamping it to have 25+ new passive/active skills and better user control/UI.
I am working on structure upgrading system for the next update and some extra building features.
I am also trying to work a map into the next version and it comes with configurable waypoints, world edit and pinging (for multiplayer).
Thanks and if you have more suggestions, feel free to add more as I can use all the improvements I can get.