All brave souls are invited to help with testing of Alpha18! Please keep in mind that it's a pretty unstable build for now, and frequent crashes are expected. To help you a little bit, the game won't delete save files upon loading them, and retiring your dungeon is possible at any point in the game. Obviously the hottest feature of the update is fighting against retired Keeper dungeons.
Note: sharing retired campaign dungeons via keeperrl.com isn't working yet.
The campaign setup is a bit cryptic at the moment, but I'll add some help text soon. Please report any encountered bugs and crashes (I will also be getting much more detailed crash reports from this build, but reports from you about the circumstances of the crash are always welcome).
To enable testing of Alpha18, go into the game's properties in the Steam client, choose the BETA tab, and choose "dev" from the dropdown list.