https://www.youtube.com/watch?v=NA5vT1LooXk -- Part two
These videos document Digital Extremes, from their beginnings as a pinball game developer, to their original cooperation with EPIC games, to create Unreal Tournament, and ultimately, their seperation from EPIC games, to make Dark Sector, which lead to their creation of Warframe, a free-to-play third-person shooter, with RPG elements, a great, in-depth story, and multiplayer aspects, along with clans, alliances, and PVP/PVE!
They were called Tenno. Warriors of blade and gun: masters of the Warframe armor. Those that survived the old war were left drifting among the ruins. Now they are needed once more.
The Grineer, with their vast armies, are spreading throughout the solar system. A call echoes across the stars summoning the Tenno to an ancient place. They summon you.
Allow the Lotus to guide you. She has rescued you from your cryostasis chamber and given you a chance to survive. The Grineer will find you; you must be prepared. The Lotus will teach you the ways of the Warframes and the secrets to unlocking their powers.
Come Tenno, you must join the war.