I liked the setting and the stealth elements but there wasn't much to most of the areas. I also couldn't figure out where to go to get anything, everything looked kinda samey. Enemy AI needs refinement too.
Moving worked mostly well, I have two gripes though - when you traverse the stairs, you can't keep holding left or right because the character doesn't move at all when you come from the stairs, you have to click the movement button again. The second thing is that the horizontal stairs didn't work at all, I couldn't walk them up. There was an up arrow at an antenna after the first area but it didn't do anything. I presume I needed the rope upgrade but I didn't find it anywhere.
Needs some polish but it's a good start! The top priority should be adding more enemies and making them more dangerous to enforce the stealth elements more.