Paklyx

Here is an excerpt from Paklyx's description on Steam:

Where are the keys?!

Play as Paklyx, a curious keyhole in a world where button mechanisms have replaced keys. Plan the right move sequence, trigger buttons, and collect keys on the exact turn they appear. Progress through levels and uncover special button types that introduce new rules to master.

Move, delay, collect, SOLVED!

Move on grid-based levels with countdown buttons that hide keys. Each move you make decreases the countdown, delays the timers and collects the key when it appears.

New chapter, new buttons.

Discover 10 unique special buttons across 10 chapters, wrapped in a minimalist aesthetic. Each button introduces a new way of thinking and adds fresh depth to the puzzles.