P.T. started the trend of subtle horror games. No scary music, looping hallways and rooms, or needing to notice any changes to move on. Exit 8 is exactly this. A single white hallway in a subway tunnel has a couple of turns, and it loops endlessly unless you notice changes. There is no story, no background, and no character development. Just this single white hallway, and you need to get to exit 8.
Your only sign of progress is the yellow exit sign, which increases in number as you make your fourth turn. If that sign goes back to zero, you missed an anomaly. When you see it, you are supposed to turn around and go back the other way. Anomalies can be really obvious, like lights being turned off, open doors, or a single man walking towards you doing something different. Other subtle ones can be the floor tiles, a security camera light, or a poster changing. You might get really frustrated at first, but keep going. Memorization is the key to getting the job done. Once you know exactly where everything is supposed to be—how many doors, posters, etc.—you will finish in under an hour.
The horror elements are subtle and not forced. A moving object, no music, and just the hum of the lights and footstops. Maybe a creaking door might make you jump. You can stop, take your time, and check the main hallway for changes. Running full force all the way through will make you miss things. You have to turn around to see a few anomalies anyway. If there aren't any changes, you keep moving on, and sometimes this can really make you feel like quitting. You will think time after time that the hallway is fine, but then you will notice something new and just keep moving on. Don't let that sign resetting to zero keep discouraging you.
The graphics use Unreal Engine 5 and are nothing special, but the atmosphere of the sterile white hallway makes it creepy. A lack of music and most sound effects makes you feel on edge all the time. The single-footed man makes you very uneasy every time you pass him. All you want to do is get to exit 8, and the intensity might make you miss things as you become more and more anxious to get out. This single-looping hallway might drive some people nuts.
Overall, The Exit 8 is a fun game that lasts a couple of hours at the most. There are only two achievements, and once you see all the anomalies, there is nothing left to do except maybe do self-timed speed runs. Some may find this a simple tech demo, but I think more horror games need to go this route. It's only a few dollars, and possibly getting some friends around to help spot things can make this a fun party game as well.