Signal wave path

You find yourself in an "empty" facility and need to pick up radio signals to unlock the doors and escape safely. Beware, danger lurks! Look on the map for the points where the radio signal is strongest and use the Q and E keys to change the frequency. Each correct frequency emits a sound that unlocks the doors.

README:

Now, about the gameplay, first you need to collect the radio. After obtaining it, you must walk around the factory looking for radio signals. When you get close enough to where the signal is strongest (the noise volume increases), you need to find the correct frequency on your radio. When you do, a beep will sound, meaning you've found the correct signal to unlock the first door! Then you go to the door and enter the frequency into the sensor (using the Q and E keys), and then simply point to the button and click to open the door. The same process repeats for the other two doors. Along the way, you'll see hints from the "master signal" that you can enter into the last panel for help.

And I'll add that there's a mechanic for eliminating the creatures; let's just say they don't like bright lights or loud noises...