No specific release date was given, but it will be available “when it’s done.”
Into the Breach is a single player strategy game with scenario co-created by Chris Avellone. Ben Prunty, composer of FTL’s soundtrack, will be back to create the score. Currently, there’s no scheduled date for the debut, but we have a small synopsis and the announcement video:
The remnants of human civilization are threatened by gigantic creatures breeding beneath the earth. You must control powerful mechs from the future to hold off this alien threat. Each attempt to save the world presents a new randomly generated challenge in this turn-based strategy game.