Its second week hasn't been quite so successful, however, showing that the UK audience for the title has been keen but is, ultimately, small. Explorers dropped out of the all-format top 40 in its second week and a look at the 3DS chart shows why; it's tumbled down to 12th place in the 3DS chart, a hefty drop after being number one just a week previous.
There's a clear leader on both Wii U and 3DS in the UK, however, with LEGO Marvel's Avengers top of both system's individual charts. Rival home console versions are still selling better than the Wii U version, though the Nintendo system's entry has nabbed 40th in the single-format charts, making it the only game on a big N system to make it in that top 40.
One final notable point relates to The Legend of Legacy - in its debut week it secured 7th place in the 3DS single-format chart.
Not a pleasing set of results for Square Enix in the UK, and next week we'll see how Project X Zone 2, in particular, performs for Bandai Namco.