And it's a pretty good spread, too, maybe the best yet - the last few bundles & mini-events have been a bit lackluster, IMO. But that's just IMO.
If you've never played it, Cave Story is one of the best platformers ever, and you must play it if you are a gamer in any sense. The original is available for free (though you might have to English-patch it), but I gather CS+ is a pretty good port.
I don't know; between the last three mini-bundles we've had Frozen Synapse, SpaceChem, Dungeons of Dredmor, The Binding of Isaac, Darwinia, Defcon, Voxatron, and Blocks that Matter.
Four of those are strong candidates for indie GOTY (and the others are still pretty good) so it's not too lackluster yet.
If you've never played it, Cave Story is one of the best platformers ever, and you must play it if you are a gamer in any sense. The original is available for free (though you might have to English-patch it), but I gather CS+ is a pretty good port.