A new AI created by Alphabet-owned DeepMind is now a pro at StarCraft II.

The company's new AlphaStar AI is beating humans players 99.8 per cent of the time, according to a paper in the Nature journal, reaching the GrandMaster rank in the game for all three of StarCraft II's races. That means it is in the top 200 players in a particular region.

The company initially announced its intention to set DeepMind AI up against StarCraft II players in August 2017. This follows a series of experiments into machine learning that saw DeepMind teaching its AI complicated games like GO.

“StarCraft has been a grand challenge for AI researchers for over 15 years, so it’s hugely exciting to see this work recognised in Nature,” DeepMind cofounder and CEO Demis Hassabis said.

“These impressive results mark an important step forward in our mission to create intelligent systems that will accelerate scientific discovery.”