Hi, what do you mean with game engine support?
I used your character pack in Unity to create my game, the character can be changed individually, hair, face etc. If you have discord I can show you what the current status is and maybe a partnership can be created from it.Viewing post in World of Solaria: Mesoamerican Dungeon Tileset comments
As in specific packages for RPG Maker, Godot, Unity etc, just to make things a little easier for some people. Stuff like this is a long way off because I'd need the time to learn more of the basics of those engines.
I'm very interested in what you're working on and would like to discuss that! My Discord username is jamiebrownhill.