Today, 10 Chambers gave GTFO fans a little surprise. And by "little" I mean it's actually quite substantial. They released a new content update today that adds in five new expeditions and a new time-limited horde objective. This update brings the total number of expeditions up to 13 for the game.
They're calling this update "Rebirth://EXTENDED" but you can just call it whatever because the whole idea of naming...