The keyboard instructions are right in front of you when you start the game. If you missed them, all the other explanations are unnecessary.
The only instruction in that paper was F for flashlight and G for Glowstick. It doesnt show why my key wouldnt open the basement door or what button i use, as i smashed every single one of the keybinds with the inventory open and couldnt get out. Must have been an early free version, since now the game is paid. I opened inventory and left click the key to get out of basement but i couldnt get out...i left click the door after getting key, wont open, i left click after opening inventory wouldnt open...
