I played this game years ago (mostly Team Fortress 2) and never actually played the other games within the collection. I've already played the Half-Life 2 and Portal games on PC but wanted to complete this Xbox 360 collection before moving forward with the rest of the Mass Effect games. All games are 9/10 and I wish that Team Fortress 2 was still populated because I miss the good old days (and to get some of the achievements). 😆👍