Spiritus Astrum [P0-B13]: p1537: Towards Early Access

I have finished adding checkpoints to all of the campaigns in the game.

There is still some work to be done here, but the now has a mostly functional checkpoint save system for the campaign, which integrates with the existing “free-roaming” save system.

I also did some extensive testing, and fixed some bugs, and made some improvements to the existing campaigns.

The first and second campaigns are quite solid, but the third campaign has a much more complex story/camaign system, so it needs more a little more testing and improvements.

There are still some bugs left to fix, which I discovered during the recent testing. Fixing these is my next priority.