Okay, good things first: The mood is nice, in my original review i said it was too dark but thats because i was playing outside and it made everything look super dark. Now that I can actually see things, The mood you set and the darkness is actually really good. The game is really fun, and fits the theme pretty well. The music is fitting, and so are the assets.
Ok, now for the criticisms:
1.Right off the bat, The UI looks very placeholder-y. Just grey buttons with the default font and black background. It feels weird to not have a "new game" button and just a level select..
2. I spent about 5 whole minutes in the first room trying to figure out how to get past the guards viewcone (view-rectangle?). My first instinct was to somehow push the giant pillar in a way that blocks his view. So here is me, spending 3 minutes humping a pillar and pressing all the buttons on my keyboard to see which of them pushes the pillar. Then, suddenly, I turn invisible for a few seconds. I spend another 2 minutes trying to figure what button pressed to cause that, and finally, I get past the guard. It was only after this that I realized that there was a controls button in the menu that explained everything. I didn't click it because A. I thought the controls would be obvious and B. I didn't even notice it. A mini tutorial or at least a floating block of text would have saved me 5 minutes of my life. You gotta remember when making a game that people can sometimes be dumb.
3. The assets... My god, the assets. Even though they are fitting there is 0 animation so it looks extremely strange. Everyone is t-posing. Maybe put a LITTLE animation on them.
4.The map design is weird. This one is a little more nitpicky because the maps are pretty small anyway. But if you were designing a bigger map, you gotta rework your map design. You have no idea which direction is the right direction you often go the wrong way. Again, this is kind've nitpicky because the maps are tiny and walking in the wrong way for 1 step will make you realize its the wrong way because you can see the end of the path but if you were designing a bigger map then this would be a big problem.
5.The controls feel awkward. Eventually you get used to them but the fact that W doesn't move you straight ahead is a little weird,
6.The difficulty ramps up way too fast. The first level is actually really good in terms of difficulty, but then it just ramps up way too fast and quickly feels punishing and gets you out of the flow state.
7.The invisibility isn't that polished. It works fine when you first use it but it would make it much better if you could see yourself when you turn invisible, maybe just turn down the opacity or something. There were numerous time when i was invisible and fell off the map or bumped into a security guard. Also, show the timer and how long the invisibility lasts and how much longer I have left.
Conclusion: Very fun game with a gigantic scope. The music is really good, and the addition of sound effects are also a great touch. Has a few issues, but they can largely be ignored while playing. Extremely ambitious for 48 hours with no team. Overall I'm giving this a 4/5.