Windscape is an indie adventure game developed by Magic Sandbox and published by Headup in 2019. In Windscape you play as a young girl living on your parents’ farm, set in a lovely world made up of floating islands in the sky. As you discover the world you learn that something has gone terribly wrong - islands are breaking apart and falling from the sky!
The system requirements are lightweight; almost any new computers will work for playing Windscape.
The RAM requirement of 4gb is easily met.
Also, note that at least 2gb of hard drive space is required.