This mod feels just as good as the base game of Portal 2, and the time travel mechanics are incorporated very well. The story doesn't mess with the lore of the games, and instead makes its own original story. The mod is free (you have to have portal 2 in order to get it though), so if you liked Portal 2, give it a try. I do have to say it does get difficult, but I also do not claim to be smart, so I probably am just dumb. If you get stuck they have a walkthrough on their youtube channel, so you don't have to sit there stuck on it forever, although playing the game is kinda pointless if you are going to watch the whole walkthrough. The effort that went into this mod is amazing and the creators clearly cared about making a mod of quality that is fun to play. Pretty short, only 25 chambers, but can take 1-4 hours, depending on how good at puzzle solving you are.

This mod feels just as good as the base game of Portal 2, and the time travel mechanics are incorporated very well. The story doesn't mess with the lore of the games, and instead makes its own original story. The mod is free (you have to have portal 2 in order to get it though), so if you liked Portal 2, give it a try. I do have to say it does get difficult, but I also do not claim to be smart, so I probably am just dumb. If you get stuck they have a walkthrough on their youtube channel, so you don't have to sit there stuck on it forever, although playing the game is kinda pointless if you are going to watch the whole walkthrough. The effort that went into this mod is amazing and the creators clearly cared about making a mod of quality that is fun to play. Pretty short, only 25 chambers, but can take 1-4 hours, depending on how good at puzzle solving you are.