Atum is a game in which you play as someone who’s playing a 2D platformer. It is, however, by most standards not a particularly good platformer, as it requires that you be a habitual smoker to beat it. That’s what makes Atum so neat, though: objects inside the main character’s exceedingly white (and literary) apartment influence what unfolds on the screen within a screen. Need to get past a security camera? Just use your cigarette to create a smokescreen. Can’t see in the dark? Hold your lighter frighteningly close to your very expensive-looking computer monitor. Etc. Etc. Etc. It’s well worth a look, I think – in spite of some clunk in its trunk.