At the heart of many great action-RPGs is a satisfying grind for better loot. Whether it’s random chests or quest rewards, it’s important to feel like you’re getting appropriate payoffs for overcoming challenges. Playground Games, the studio behind the upcoming Fable reboot, told GameSpot it’s aiming to make sure that its loot and equipment feels meaningful, with big swings in power level. Creative directors Will Kennedy and Craig Littler told us in an interview at Gamescom that there’s lots of…