I've been a huge Shadowrun fan for years, playing the games back on the Sega Genesis and Super Nintendo, as well as playing the paper and pencil RPG. I've seen that Shadowrun Returns and two other add-ons are at a huge discounted price on Steam. My question is, how would those games run on a mid 2013 Macbook Air? I have the base model with the 1.3 I5 and 4gb of ram, 128gb HD. And anyone have an idea of how much space those games would take up? I really appreciate the advice and help, thanks in advance.