Update (Bugfixes)
This update resolves the following:
Save progress after receiving Inventory objects.
Save progress after using an Inventory object.

Loading the last memory point could result in the following situation:
No interactive objects displayed (player object etc...)

Maps:
All maps have secured entry/exit points.
This should no longer result in the following error:
Player cannot leave/enter Map. 

Performance:
The performance of the engine was further improved.

Known errors:
A:In rare cases, graphics errors may still occur in some cases.
B:Memory overflow has not been detected, but cannot be excluded.

Solutions:
A: Exit the area with the graphic error and re-enter it. 

B: End the game via the title screen.
    Start the game from the desktop.
    Continue the game via title screen.