Marijo is a rare author with realized writing potential in different areas and languages. Formally, he has a college technical education and a master's in economics. His sphere of interest is ancient Arian history, the technology of the past and future, and recently (from 2019) game development. He is a writer of many well-known books about the Godot game engine.
Marijo promotes peaceful video games where the player can learn and have fun. He also believes in the power of nature and writes about it in "Living in nature Marijo Trkulja." When people ask for his teachings, he says to read "Spiritual Adventures of young Hakun".