A reboot of the 1994 video game, Killer Instinct (2013) was initially released as free - to - play (don't get too excited), you started out with one character and could
buy additional fighters as they were seasonally released.
The Xbox One version will be a trial version that won't be expandable by
additional purchases, but players can opt to
buy a retail version of CORE
FIGHTERS that brings Hitomi, Tina, Jann Lee and Bass, and can be expanded by more purchases.