Why did I think I'd start with 3d?

So, after being convinced of what I already knew to be true, I've decided that 3d is much to difficult (at least, to start with) my XCom roguelike will be 2D for the time being. This will make everything much, much easier to code. An as was previously stated by a wise person, even Dwarf Fortress started out as a 2D game.