The Orange Box Now

The collection was instrumental in showcasing the Source Engine, which saw significant updates during this period.

A revolutionary puzzle game that was originally intended as a smaller bonus but became a surprise critical success. The Orange Box

The first expansion continuing the story. The collection was instrumental in showcasing the Source

Team Fortress 2 became a long-running, influential free-to-play game (later on), while Portal spawned a massive franchise. influential free-to-play game (later on)

It introduced thousands of players to the Half-Life universe and established Portal’s "portal gun" mechanic as iconic.

The second expansion, which left the story on a significant cliffhanger.