KUR is a free to play idle dungeon crawler set in the underworld of Mesopotamian myth. It runs in a small window you can resize, switch to a minimal view or shrink to a tiny progress tracker in the corner of your screen while you work or play something else. Your party of three heroes explores and fights on its own. You decide who descends, what they carry, how they grow and how deep to push. Choose from eight classes, each with a male and a female version, and combine skills, a passive tree for every class and party synergies to face what lies below. Descend through seven Domains, each with its own monsters and a guardian waiting at its Gate. Break the last Gate and the descent begins again under the Mark, deeper and harder, with no bottom. Fight more than 80 creatures drawn from Mesopotamian sources, loot hundreds of named items across nine rarities, forge and fuse gear at camp and grow a Seal that never resets. Monsters drop Ash, which can become Artifacts, numbered, limited and never sold. Player trading through the Steam Inventory is coming soon. Free to play, and you never pay to win.