The Mensional

A dimensional machine appears without warning. The character who finds it is pulled through a time distortion before they understand what they have touched and arrives in a place that is familiar in layout but occupies a completely different point in time. Time here moves like a mechanical wheel — turning it forward or backward changes where in the timeline you are standing. The machine needs to be restarted to get back. Restarting it requires finding whatever it uses for power, which means exploring the environment until the answer surfaces.