It means that the development on the game has officially finished and that it is being sent to the manufacturer to be printed to disk and then shipped to stores for release on February 10th, 2015. To celebrate, the teams at 2K and Turtle Rock released the action-pack cinematic introduction to download and watch.
To see more about what the Turtle Rock team is up to now that Evolve is completed you can visit their official site here!
Evolve is a game from the creators of Left for Dead. It is a shooter where four hunters face off against a player-controller monster in 4v1 pvp matches. Evolve won more than 60 awards and editorial honors to date, is the only game in history to earn the official E3 and Gamescom “Game of Show” awards in the same year, and is the most critically acclaimed game coming in 2015.