A missing moon is an andventure game developed in 2018 by Arty Farty Games which follows the young girl Isolde who realises that the moon has gone missing.
You now have to steer Isolde on the path to figuring out how to get the moon back and what can be done to make the people of the world take note of their surroundings once more.
The game is free and can be found here: a missing moon