Because the game was released in 2003 for Windows 98/Me/XP, it may not run natively on Windows 10 or 11 without using Compatibility Mode (right-click the launcher > Properties > Compatibility) or a virtual machine.
If you're feeling nostalgic, you can see what the original 2003 PC gameplay looks like here: finding-nemo-pc-game-free-download-full-version
However, there are still ways to play it legally or through digital preservation sites: Where to Find the Game Because the game was released in 2003 for
You can find full digital copies of the original 2003 PC CD-ROM preserved on the Internet Archive . This includes various versions such as the standard adventure game and " Nemo's Underwater World of Fun ". A mobile version titled " Nemo's Reef "
A mobile version titled " Nemo's Reef " was available for free on iOS devices, allowing players to build an underwater home. Important Technical Considerations
You can still purchase physical copies of the original CD-ROM from second-hand sellers on platforms like eBay or Amazon.