At Play, Vol. 3 is a compilation album from the Canadian progressive house musician deadmau5 and the third of the At Play series. Like the previous At Play albums, this album consists of "10 Full Length DJ Friendly Tracks" as it says on the sleeve. It was released on June 14th, 2010 in the UK and on June 29th, 2010 globally. Half of the tracks are from his 2006 album Vexillology and the last two are singles from 2007. The tracks "Cyclic Redundancy" and "Templar" were previously released on the 2007 EP Full Circle. However, deadmau5 himself claims to have had "nothing to do" with the album's release. It also features a single collaboration with Melleefresh.

>tracklist goes here<

  1. Cyclic Redundancy
  2. Apply Overnight
  3. Plus
  4. Lai
  5. TL7
  6. Bounce
  7. Full Bloom
  8. Templar
  9. Stereo Fidelity
  10. Whispers (deadmau5 remix - with Melleefresh)