The Last 15 Minutes

Instructions:

Controls WASD Move E Interact C Crouch H Hint Esc Pause

Check your surroundings before you sprint anywhere. That flashlight beam is narrow, and rushing past a dim corner usually means missing the one key you actually needed.
Crouch near shelves, vents, and low cabinets. A lot of the smaller items get tucked in spots you'd only notice if you're down at floor level.
Don't burn the hint button in the first five minutes. Save it for when the clock is screaming at you and you're stuck on a lock combination that makes no sense.
Listen more than you look. Half the tension in this basement comes from audio cues telling you something's changed before your eyes catch it.
Backtrack on purpose. Rooms you've already cleared sometimes hide a second item once an earlier puzzle unlocks a new path.

WASD handles movement, and it's tight enough that you can pivot quickly in cramped hallways without clipping into furniture every two steps.
E is your interact key, covering everything from picking up keys to flipping switches and prying open stuck doors.
C drops you into a crouch, which matters more than you'd expect for both stealth and reaching low hiding spots.
H pulls up a hint when a puzzle has you stumped, and Esc pauses things if the fifteen-minute pressure gets to be too much for a second.

A real timer changes how horror puzzle games feel. Every wrong turn actually costs you something instead of just wasting your own patience.
The flickering-light setup keeps you guessing about what's actually in a room versus what your brain is just filling in out of nerves.
Puzzle logic here leans fair rather than cruel. Solutions make sense once you find the missing piece, they're just well hidden.
Short runtime makes it easy to replay and shave time off, which turns a spooky one-off into something you keep coming back to.
Crouching and searching low spaces adds a small stealth layer that a lot of key-finder games skip entirely.