A Night With Evil

You start the night in a room with 3 doors. At your disposal there are 3 door control buttons and a computer on which you can watch what is happening in the neighboring rooms. Your main task is to survive!

Your mission is to hold out until 6 am. 1 game hour is equal to 1 minute of real time. At any second, Evil can appear! Watch the cameras and close the doors in front of him in time. But be careful! Every closed door takes away your energy! Use it wisely.
PC control:
1. Left-click on the buttons or the computer to interact.
2. "Tab" - open/close the computer screen.
The upper right button opens the menu.
There are buttons on the computer panel for switching cameras.
There are only 3 nights in the game with increasing difficulty.