I found six, which also are shown here. Are there any endings left in the original mod version?
You got them all. There are 6 endings in total, as verified by the author. Here's a branching graph:
Well there are numerous different endings in the Stanley Parable game.
You follow all the directions and you escape from the hell hole job after discovering that EVERYONE, even YOU are being controlled by your boss.
You disobey EVERYTHING the British VoiceOver told you and go through many different doors but change your mind to listen to him FINALLY at the elevator and press the up button. You are then led to your death… TWICE.
You still ignore the Voice and go to a Random place where there is no story line for you. Forcing you to stroll through the wasteland for all eternity.
You follow His directions again and you reach a machine. You choose to power up the machine which Pisses off the Voice and he makes the machine explode. You Die…
(Again) You follow the voice up until you reach a stairwell. You go downstairs instead of upstairs. That's where you realized everything isn't real it's all make believe. You suffer from a mental breakdown and Die, the view of your body zooming out.