Thanks!
In the future, I will add small levels of half an hour, so you can save more often (Demo levels are too long, my mistake) There will be more little upgrades (will be opened automatically).
Most likely there will be no autoexplore. The game has become too complex and requires some tactics. (But perhaps (~10% chance) such a simplified auto-mode will be added in the future)
Unfortunately, due to the current situation, I have slowed down work on the game. Release will be possible only after the resumption of bank transfers from steam/paypal to Russia.
I will be adding content (levels, characters) to the demo. Maybe it will become a "lite"/"early access" version...
But at this point everything is too uncertain.