The best selling third party game on Nintendo Switch right now is Mario + Rabbids: Kingdom Battle, according to sales tracking companies.

The data comes from NPD, which tracks physical sales in the US and Australia, and from Chart-Track GFK, which tracks sales in the UK.

Given that Mario + Rabbids: Kingdom Battle has the backing of the Super Mario franchise, it’s not surprising that the game is selling so well. Besides Mario, the game has a really high quality polish to it.