Other creator of this game here. Yup you would be right, the game's design was inspired by the Stanley Parable, especially those hallways. Although I have to say I like your game too. In my opinion, I felt that your game's pacing was better and a lot more interactive, also pretty cool that you can walk backwards to door 1 if you wanted to for some reason.
I was also surprised when browsing the submissions that room 60 had an almost identical concept to us. Well you know what they say, great minds think alike.