As of March 31, 2021, it will no longer be possible to upload courses in the Super Mario Maker game for the Wii U system. On the same day, the Super Mario Maker Bookmark website will also close. As a result, Super Mario Maker for the Wii U system will be removed from Nintendo eShop on January 12, 2021.

Please note that depending on the circumstances, these services may be discontinued earlier than the above-mentioned date.

Services that will end

• The ability to upload courses in the Wii U version of Super Mario Maker
• The Super Mario Maker Bookmark website

Due to this, the following features within the software’s Course World will also become unavailable:

• Updating the ranking of liked courses
• Looking up your bookmarked courses

An error message will be displayed when trying to access these discontinued services after their end date.

It will still be possible to play courses that were uploaded before the course upload feature was discontinued, and to redownload the game after its removal from Nintendo eShop. There will be no impact on the Super Mario Maker 2 game for the Nintendo Switch system.

We would like to thank all players for supporting Super Mario Maker on Wii U over the past five years.

It's a shame to see it end, but Nintendo is fully committed to the Switch and likely sees that the Wii U version of the game has a dwindling player base as time goes on and does not want to shoulder the costs and maintenance needs of continuing to run the service.  Players will still be able to download previously uploaded levels after the cutoff date.  I created sixteen levels which was an exciting project when the game was new, but I haven't been able to get myself into creating new levels for Super Mario Maker 2.  I feel as though I got everything out of my system with the first game and am now simply content to play levels created by other people.