Recently played Train 113 and had a great time! A short experience with phenomenal visuals and audio which really helps to put you in that train. Sadly, I only discovered the existence of both endings after my recording, yet I find both equally creepy adding some variation to the gamgame.
As far as improvements go, I would definatly recommend adding an escape menu, with simple settings such as audio and graphics as this game can be quite demanding. Gameplay wise, I felt the key was a bit too difficult to find, leading me to looking up tutorials simply to find it and progress. Maybe some sort of hint after a certain amount of time has passed could be sufficient. I can't wait to see the full release and understand the story behind Train 113. Thanks for creating this experience, you guys rock!
Feel free to check out the video, I give some more indepth insights at the end :)