Spent tonight playing Cosmic Osmo by Cyan, the creators of Myst, with my 5-year old tonight and we really like it. It controls in a similar way to Myst, first-person node-based navigation, but the game is focused entirely on exploration with no win condition or way to complete the game. You just explore, clicking on everything to see what happens, and occasionally stumble across mini games. It's just a lot of fun exploring the surreal world created by Cyan and I really like the B&W art
https://store.steampowered.com/app/63620/Cosmic_Osmo_and_the_Worlds_Beyond_the_Mackerel/
