The game takes place in dozens of levels inspired by both Half-Life and its sequel, challenging players to a slew of puzzles, and showcasng many of the familiar creatures in an all new, two-dimensional playing field. Codename: Gordon features six chapters, eight different enemies, five weapons and a fully functional buggy. It was created using Adobe Flash for the game engine and Photoshop for the graphics.

Valve had released Codename: Gordon via Steam, but the game has since then been removed from it due to its developer’s default, which caused their official site to be replaced with an advertisement site.