Creator didn't want 'responsibility of owning a company of such global significance'.
Has the power to unite people and reach new gamers across multiple platforms, says Xbox boss Phil Spencer.
Notch and fellow founders Carl and Jakob are leaving to work on other projects.
Notch could leave once deal is completed, report claims.
Bethesda and MachineGames' first title earns the second biggest launch of 2014 behind Titanfall.
$5 upgrade confirmed for next-gen editions, Vita Edition free to those who already own the PS3 Edition.
FIFA 14 sets a new record for the franchise with 12 weeks at No.1.