Valve have announced that Shattered Horizon is available to play for free until 10:00a.m. Monday NZ time. In addition, the game is available at a 50% discount until Tuesday.

This multiplayer first-person shooter is played entirely in zero gravity. A catastrophic explosion on the Moon has filled near-Earth space with billions of tons of rocky debris. Players will join intense 32 player battles to control hollowed-out asteroids, huge fragments of Moon rock and the ruined remains of the International Space Station.