itch.io

Satie is also unlockable, but unlike Bella who is unlocked by winning with the book in your inventory, Satie is playable when you beat her nightmare mode.

If you beat nightmare mode for Satie, you unlock her as a playable character. The rest are just a harder mode with no rewards yet.

What happened to the change log for the bug fixes?

You have to go to an ATM, or a computer in your hotel room.

Full screen no longer works on Mac.

From what I was able to gather, some of the units that don't automatically attack can be clicked on to launch airstrikes or artillery bombardments.  These have multiple different varieties, but cost resources to use.