Atomic Heart front-loads its most fascinating concepts. There are floating Soviet laboratories in the sky, home to a networked artificial intelligence which could signal the evolution of human consciousness; a veteran USSR operative who can’t recall his past, and an army of rampaging robots designating the populace of Facility 3826 as enemy combatants after a software malfunction. Atomic Heart’s opening hours are busy, but enthralling – recalling fond first visits to worlds like City 17, Dunwall, and Rapture. Sadly, Mundfish isn’t able to weave these loose threads into anything functional.