This week's Steam deals are headlined by ex-Valver Kim Swift's first-person puzzle game, Quantum Conundrum, available for $4.50 until June 24 at 10AM PT. Anodyne, a 16-bit adventure game from Sean Hogan and Jonathan Kittika, is also on offer, discounted to $5 for the week.

Worms developer Team17's arcade shooter Alien Breed Impact, an expanded version of Alien Breed Evolution, is also $5 for this promotion; physics-based puzzler Obulis is down to $1.25 and manic side-scrolling shooter Ares: Extinction Agenda is $2.50.

This article was originally published on Joystiq.