So this is something we're doing now: game mixtapes.
I'm not convinced the analogy quite works; games - even very small ones - tend to be bigger and more self-complete than songs are. Ideally I'd like to pull out a bunch of individual sections from different games and string them together to make something much more closely approximating a mixtape - a track from Soul Brother, a room from Cave Story, one level of Brogue.. this isn't so easy to do with existing games.
I've dug into the idea of albums of games in the past, with Idiolect (which I never finished) and Kompendium. Specifically designing games to be joined together as an album; more distinct than individual levels of a single game, but more coherent than a series of separate games. L mentioned the idea of an album of games from different authors earlier today. I think this kind of approach is more likely to yield something that makes sense as a whole. But a big part of the mixtape idea is just to introduce people to stuff they might find interesting, akin to the Pickford Bros' "games we like" initiative; they don't necessarily have to fit together.
Anyway, here's a mixtape.
Kenta Cho - a7xpg
Linley Henzell - Excellent Bifurcation
Chris Morris - Linerogue
Christoffer Hedborg - Cathode Rays
Jonathan Whiting - Niña Nueve
Jonas Kyratzes - Alphaland
Robert Yang, Mohini Dutta, Ben Norskov - Souvenir
Stephen Lavelle - The Rose Garden