Thanks for the comment :)
Yeah, that was intentional, as I have another game The Darkness Below that has a full blown combat mechanics and simply wanted a much "lighter" take on this one. Definitely can be improved and add some complexities while still keeping it automated, which is the basic premise of the game.
The engine (Jolt3D!) is really a very old project of mine, actually much older than Unity and on-par with first versions of Unreal (1999-2000) and had lots of incarnations through the years. There should be traces of my very old websites when I was still publishing versions of my engine, before turned to game development.
Yeah, it has an insane amount of work internally, mostly to support multiple OSes, mobiles and all that. Definitely adds multiple layers of complexity and increased time when you're making games with it, but its faster to fix your own bugs that way and add new low-level stuff :)
Glad that you've liked it and for your time :) Keep coming for improved versions!