Platform:
 

Half Life 2 Episode Two (PC)

0 available, 0 wanted, 5 collection
Half Life 2 Episode One (PC)

Half Life 2 Episode One (PC)

2 available, 1 wanted, 11 collection
Half-Life 2 (PC)

Half-Life 2 (PC)

11 available, 3 wanted, 26 collection
Half-Life 2 (Xbox)

Half-Life 2 (Xbox)

23 available, 5 wanted, 16 collection
Half-Life (PlayStation 2)

Half-Life (PlayStation 2)

6 available, 8 wanted, 23 collection
Half-Life (PC)

Half-Life (PC)

13 available, 4 wanted, 25 collection
Half-Life 2: Episode Pack (PC)

Half-Life 2: Episode Pack (PC)

1 available, 0 wanted, 2 collection
 

Half-Life 2 Episode One -- Strategy Guide (guide)

3 available, 1 wanted, 1 collection
Half-Life: Platinum Collection (PC)

Half-Life: Platinum Collection (PC)

4 available, 1 wanted, 18 collection
 

Half-Life: Platinum Collection 2 (PC)

3 available, 3 wanted, 4 collection
 

Half-Life: Opposing Force (PC)

6 available, 1 wanted, 12 collection
Still Life 2 (PC)

Still Life 2 (PC)

10 available, 5 wanted, 6 collection
Two Worlds II (PlayStation 3)

Two Worlds II (PlayStation 3)

16 available, 12 wanted, 9 collection
Two Worlds II (Xbox 360)

Two Worlds II (Xbox 360)

8 available, 10 wanted, 15 collection
Phantasy Star Online Episode I & II (GameCube)

Phantasy Star Online Episode I & II (GameCube)

7 available, 31 wanted, 36 collection
Phantasy Star Online Episode I & II (Xbox)

Phantasy Star Online Episode I & II (Xbox)

10 available, 2 wanted, 18 collection
Phantasy Star Online Episode I & II Plus (GameCube)

Phantasy Star Online Episode I & II Plus (GameCube)

2 available, 38 wanted, 12 collection
 

Half-Life 2: Deathmatch (PC)

0 available, 0 wanted, 3 collection
 

Half-Life 2 -- Collector's Edition (PC)

1 available, 0 wanted, 3 collection
 

Half-Life: Counter-Strike (PC)

3 available, 1 wanted, 9 collection
Half-Life: Blue Shift (PC)

Half-Life: Blue Shift (PC)

3 available, 0 wanted, 14 collection
 

Half-Life 2 -- Strategy Guide (guide)

3 available, 1 wanted, 3 collection
Half-Life: Team Fortress Classic (PC)

Half-Life: Team Fortress Classic (PC)

0 available, 1 wanted, 8 collection