You would like to have a twin, which would help you to pass the puzzle? This mod will show how to use a time machine to create his counterpart from the past that will help pass the puzzle.
This review may contain spoilers
I was both happy and sad about this mod. Being able to have another me was amazing, having legs(#bestmodever), the chambers were fun and challenging. Despite the fun gameplay, it was not enough. The game was really short and the ending pretty abrupt.
Overall, I loved this mod a lot. It was really innovative and quite challenging. Just too short.