What changed:
- Zones of three depths, each with its own stone, boss and omen.
- Five bosses: the Warden, The Drowned, The Abbot, Kilnheart and Rootmother.
- Ten new foe types. From depth 4, elites can roll one of six affixes.
- 14 active skills and 40 perks.
- Perk and Forge cards show the exact change before you pick one.
- The Forge no longer runs out of upgrades.
- From depth 7, foes grow stronger faster.
The rules changed, so a run saved in the previous version starts over.