Actually, peacon, Windows Surface Pro 2 is decent at running mid-range games (Can play league of legends on max settings at a solid 70-80 fps, for example.). While yeah, hardcore gamers couldn't get much from that, I'm sure it could run blockland just as well, albeit probably not with shaders.
But yeah, definitely invest in a desktop computer if you're trying to play some intensive games besides blockland. It'd cost about the same anyway.