If you spin a spoon in space, you will have a perpetuum mobile.

It will not ever stop, if its like in a position like the
intergalactical space.

The earth is also a perpetuum mobile, else it would have fallen into
the sun.

Some small recent games of mine:
Griefer 4k http://damocles11.byethost9.com/griefer4k.html
Kobold 4k http://damocles11.byethost9.com/kobold.html
Cave 4k http://damocles11.byethost9.com/cave4k.html