Added a new NPC - Pills Merchant. With their help, you can strengthen your character. The assortment of stores has also been expanded, some bugs have been fixed.

List of changes:
*Added a new NPC - Pills Merchant. He spawns randomly some days. Found in hallways;
*Added many new items of food, pills and more;
*Assortment of all stores has been expanded;
*Strength now grants 15 damage points instead of 5;
*Endurance now grants 5 stamina recovery per second, up from 2;
*Now "Explore" consumes less needs;
*Experience system has been changed. Less experience is now required to level up;
*Added help in the main menu and in the beginning of the game;
*Fixed a bug with incorrect display of progress for some girls;

I also thank all the players for their support!