A great prototype for a stealth game. I really like the spritework both for characters, dialogue profiles and some environment (like the tool room at the basement), controls feel good with a lot of interesting movement options (like going prone or doing a dodgeroll).
I dig the keyhole spying mechanic, though it seems like it's not used for anything right now.
The map itself is very well designed, lots of points of entry, shortcut opportunities. Feels like a legit stealth map, but it's a bit underused with only a single guard and the computer room being right behind him. But I liked the fact that I could hide from him under the table.
Guard got stuck a couple of times, and I had trouble jumping through the window from the computer room. Also the ladder and the vent are too close to each other.
Very promising. Looking forward to see what you're gonna do with it next!