As promised, I have uploaded a pre-release build of Alpha25. There are still various issues to be fixed and this version contains some placeholder artwork, but I believe that it's quite playable. I invite all seasoned players to take a look and post their feedback in this thread or in the comments below.
The new version allows submitting bug reports from within the game, optionally attaching a save file or screenshot. Please use this feature to submit as many reports as you like, including suggestions, minor issues or typos.
Please don't opt in if you are new to the game, as it's very unstable, and the tutorial doesn't work at the moment.
To opt-in into the build, please go into the game's properties, BETA tab, and choose the "dev" branch.