You start in the walled village of Gridholm: talk to the locals and trade in the shops. Roads lead from its gates out into the hills, to old ruins. Stairs beneath each ruin descend into its own dungeon, a grid of labyrinths: stairwells lead to neighbouring sectors and the hatch takes you deeper. Defeat the guardian before each gate to get an Access Key. Loot goes into your backpack, and relics only work once equipped in a module.