While some consider 20-year-old games "abandonware," Myst IV is still actively sold and protected by Ubisoft. Using unauthorized free download sites puts your computer at risk and doesn't support the preservation of the series.
Here is the most reliable way to get the game running today: 1. Where to Buy Myst IV: Revelation Free Download
Right-click the game executable (.exe) -> Properties -> Compatibility. Set it to Windows XP (Service Pack 3) . While some consider 20-year-old games "abandonware," Myst IV