Marvel's Spider-Man: Miles Morales sold 4.1 million units worldwide in a month and a half.
Having launched on November 12, Insomniac's game had shifted these copies by December 31, 2020, Sony said in its earnings call.
Spider-Man: Miles Morales was the PS5's biggest launch game in the UK, though sales didn't quite reach the height of 2018's Marvel's Spider-Man in the country. The title debuted at No.3 in the UK charts, with 71% of its sales going to PS5. Sales for the title were boosted around Christmas, with a 45% rise that helped it climb to No.6.

Spider-Man: Miles Morales has sold 4.1m copies | GamesIndustry.biz