Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: June 13, 2015 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: June 27, 2016 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Dec. 25, 2015 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: GotY Edition; June 29 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Bought in Art Appreciation Pack
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Nov. 29, 2015 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Bought with Portal 2; ~Jan. 6, 2013 - Jan. 7, 2013
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Bought with Portal; Jan. 7, 2013 - ~Jan. 16, 2013
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: June 13, 2015 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: March 31, 2014 - ~April 4, 2014
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: All DLC bought; July 16, 2016 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: July 14, 2013 - ? (didn't beat);
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: All DLC characters and colors
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: None
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: ~April 5, 2016 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: July 13, 2013 -
Steam - Official Release
Cart/Disk
Case/Box
Manual
Other
Notes: Complete run: ~June 15, 2016 - July 23, 2016