Klax is a puzzle video game released to arcades by Atari Games in 1990 while Namco distributed the game in Japanese markets. It was designed by Dave Akers and Mark Stephen Pierce. The goal is to catch colored blocks falling from a machine and arrange them in colored rows and patterns to make them disappear. Klax was originally created as a coin-op successor to . publishes Tetris, over which Atari Games was in litigation at the time.

The Atari 2600 version, released in mid-1990, and Deadly Run are the last releases for the console, which was discontinued in early 1992.