Sean Murray had been working through the night when CNBC met him during the late morning at PlayStation's London headquarters last Wednesday.
His team at Hello Games where he is managing director had been putting the final touches on the update of "No Man's Sky", the much-hyped game that was released in the U.S. on Tuesday.
It's an ambitious project. "No Man's Sky" is built using a technique known as "procedural generation" – essentially an algorithm that creates the game's world as a player moves through it. Traditionally a game studio would have to draw intricate designs in order to create a fixed number of virtual worlds, a labor-intensive process that could take hundreds of designers.
But the world in "No Man's Sky" creates itself and even Murray hasn't seen what the entire universe has to hold for the player.