Master Reboot is a bit of an odd game. In both a obvious way and a non-obvious way. Essentially, the idea behind Master Reboot is that you are in a future where people can upload their memories, personality, and other traits into a cloud service, and then family and friends can visit these memories or download and install these peoples personalities into robotic shells to continue living with them if they desire. However, there was a crash in the system that caused the whole cloud service to have a reboot, which lost and corrupted some data. And now you play someone delving into the memories of someone with said corrupted data looking for something.
It's basically a walking simulator experience game, except not in a typical sense. The game is split-up into memories, with each memory being a stage. They're called memories, but they're more like surreal takes on memories, with a lot of odd and abstract imagery and logic. Each memory also is different, and not just in themes, but with what you do. Some are literal walking simulators, but others have elements like puzzles, or things you have to avoid or sneak past or else you'll die.
The stages have some good variety. Some are more relaxing, like this beach stage where you look for items with a metal detector. Others are a bit obtuse with what you must do, like this one amusement park stage you attend too. Some take on a horror tone, with creepy atmosphere and things trying to kill you.
On that note, my favorite stage, and something that was legitimately scary, was the plane memory. With memories in the game like a hospital and school and graveyard, you'd think one of those would be the scariest stage (and they do have some creepy factor, to be sure), but the actual scariest stage was definitely the plane one. It scared me pretty bad a few times, and this is coming from someone who plays a lot of horror games.
That's the thing I think this game does best. Atmosphere. I think the people who will enjoy this game the most are those who like atmosphere and maybe some oddities in their games. It was a bit longer than I was anticipating, but I did like it. Not the best thing I've ever played, but I liked the variety of tasks and settings, even if the basic concept of the game's story was more interesting than the story that develops in the game. But I'd say worth checking out if you're into this kind of thing.