Rust and H1Z1 not technical or complexe enough, try 7 Days to Die with its Voxel based building its kinda like MInecraft but more hardcore.

Looking for a break from the carnage of Zombie killing and base raiding then check out the single player game Life is Strange, its got some cool twists

If you enjoy games like Minecraft but are looking for a bit more realism and danager Rust is an excellent surival game with lots of different mecahnics.