half life 2

Half-Life 2 and its related versions are priced differently based on platform and edition. For example, the PC version of *Half-Life 2* is valued at around $22.94 used [2], while the Xbox version is slightly lower at $19.58 used [3]. The *Episode One* expansion for PC is valued at $9.82 used [1], and the full *Episode Pack* is priced at $16.55 used [4]. If you're looking for a specific version or have a particular platform in mind, let me know, and I can provide more tailored details.