Windows

Codename: Gordon

Main game screen

Highscores screen, updated in real time through an online server

Training level

You meet Barney, he has some funny lines up his sleeve.

The first chapter is filled with zombies and headcrabs.

The Beach

A Buggy Race (and the first boss)

You can unlock a Bonus Game by completing C:G.

This dock reminds of Half Life 2's Ravenholm / City 17