2-3 hours of straightforward puzzly stealth gameplay, depending on whether you're going for completion and achievements. It's simple but fun.

The stealth mechanics are barebones. Picklock basically a point & click game that has only 1 action button. This action button picks up items, opens doors, unlocks doors/safes/... Neither of those actions is connected to minigames or anything. Unlocking new tools is pretty much meaningless; you just wait, and you often need to time these actions to stay out of the patrolling enemies' vision cones. Those cones are all they have; they don't even hear you drilling open a safe right next to them, and they don't care about open doors that shouldn't be open. They're dumb like the enemies in Metal Gear Solid 1.

Now, there are moments when an enemy might react to an open vault, get distracted by interactable objects in the environment, lock down a building after an unavoidable alarm was tripped, or get rid of other enemies... but those mechanics are rare, scripted, and usually exclusive to just one map. Their uniqueness makes some of the 13 levels stand out, though.

Despite the clunky controls, Picklock is perfectly enjoyable if you like stealth games. I would have liked to play more of it. But it's definitely not worth its full price.