Canadian studio Digital Extremes has released the first gameplay trailer for their recently announced Warframe, offering the first look at alpha footage from the unique looking free-to-play cooperative PC shooter.

Beta testing for the game is expected to begin in early 2013, so the gameplay on show is still very much alpha footage, but as you'd expect from the experienced FPS developer known for their many years of service on Epic Games' Unreal Tournament franchise and more recently The Darkness 2, it's looking pretty slick.

WARFRAME is a fast-action PvE shooter set in an evolving sci-fi world. Some would call it MMO-Lite as squads of four players band together to advance their characters and battle the oppression of the genocidal Grineer. Throughout their combat missions, players will continually increase the power and abilities of their WARFRAME and weapons. Players will raid new areas of space searching for exotic and powerful weapons and WARFRAME augmentations to customize their arsenal. With WARFRAME's Automatic Mission Generator, the game will offer endless replay as levels are procedurally configured for a unique raid -- every time.

Watch the video below (or click through to the HD video page) and head over to the official site to sign up for the beta.