This gamemode will get a few more updates because it's lacking content but this is what it is for now!
-Added a new gamemode with 3 levels, the dropper!
-Added 3 new achievements
The Dropper Update!
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.