Blizzard is continuing work on Overwatch's "Play of the Game" feature, though it says it's a tough nut to crack.

Overwatch lead software engineer Rowan Hamilton told Gamespot that "from a technical standpoint, it's a really hard problem to have a computer figure out what is cool."

Play of the Game - which replays computer-selected highlights at the end of matches - has been criticised for favouring simple kill streaks, while ignoring more creative uses of the game's multitude of character abilities.

"It's feedback we get a lot," Hamilton said; "it's going to be an ongoing process, and hopefully we continue to improve it."

The algorithm used to select plays considers "a lot of different variables," said Hamilton, which include "obvious stuff like damage and kills," "a lot of support actions," and more complex concepts like the difficulty of a shot on a moving target.

Other improvements to Overwatch being prioritised by Blizzard include the currently-AWOL competitive mode, performance stability, and balanced matchmaking.