Stones Keeper uses a turn-based combat system, which lets you use environmental objects as protection against your enemies. As well as the ability to break some of the environmental objects down to move faster, which, in turn, opens up a lot of strategic possibilities. You can customize your squad by recruiting new companions with multiple specializations, skills and weapon preferences. Missions and battles will be just as diverse: Command your warriors to besiege enemy settlements or defend yours, protect your order's churches, escort civilian wagons, lay siege to enemy castles, aid your allies, and capture new technologies to upgrade your castle.

The story of King Aurelius's courage and self-sacrifice – leader of the Order of the Griffin. The Inquisition, guarding the borderlands, asks for help as undead units are increasingly infiltrating the territory of the order. Aurelius takes on the task of protecting his own lands, unaware that this is only a small part of what his entire Order will face in the future.