Look at this game : https://store.steampowered.com/app/1444480/Turing_Complete/ https://store.steampowered.com/app/1444480/Turing_Complete/ Basically you go fr

Look at this game : https://store.steampowered.com/app/1444480/Turing_Complete/ https://store.steampowered.com/app/1444480/Turing_Complete/ Basically you go from building logic circuits to building your own CPU and writing assembly for it. I only added it to my wishlist, didn't try it yet.