Warframe is an online cooperative free-to-play 3rd person shooter created by Digital Extremes. Set to a Sci-Fi world that borrows art and lore from Dark Sector but set in a different timeline, it is considered to be a spiritual successor to Dark Sector. Warframe often gives nods or easter eggs towards the game, such as special skins that reference Dark Sector characters or even enemy designs themselves. That is where the similarity ends however, as the Technocyte as we know it in Dark Sector does not exist, and Excalibur is said to be the first "Tenno", drawing the line where borrowed and influenced lore is used, and where a new game is created.