Under Endgame → The Labyrinth: fog-of-war mazes explored tile by tile, floor after floor, as deep as you dare. Every player runs the same layout — fixed for the season, reshaping for everyone when it turns. Learn the corridors, share the maps.

Every floor hides a Keywarden carrying the Brass Key to the stairs door, a sealed Vault with the good chest, a Shrine offering one of three stacking blessings (the Rift’s heart, relocated), loose chests, and dungeon-grade denizens. Every 5th floor a Warden holds the stairs — a true boss, above your level, the fight your blessing stack exists for.

Labyrinth fights run on the same engine as dungeons — your whole hotbar, spells, Weapon Artes, abilities, Spell Fusion and pets, with trash mobs tuned below your level as the journey and Wardens as the wall.

Every floor bears an elemental Sign: all its denizens share one weakness and one resist, shown atop the maze. Match the Sign and watch them melt.

Every 10th floor cleared plants a checkpoint. Falling shifts the maze: you wake at your checkpoint, blessings gone, the floors above re-fogged and repopulated — but chests looted, floors first-cleared, and your deepest record endure. First-clears pay Ascendant Sigils, with a bonus on Warden floors.

From the entrance, send your Echo into the depth you’ve conquered — 1, 4, 12 or 24 hours — and it returns with Sigils and gold scaled to your deepest floor. Active play pushes the frontier; your Echo farms it while you sleep. Unlocks at Depth 5.

The season’s deepest depths rank on the entrance panel and the Top Lists (the old Tower tab is now the Labyrinth’s). When the quarter turns, the top ten — and everyone past Depth 5 — are paid Sigils by post, and the maze reshapes. The Sigil Exchange (Ascension Dust, the Herald of the Worldspine title) carries over to the entrance panel unchanged.

Both modes leave the Endgame menu with full honours. Every Ascendant Sigil carried over untouched; the Tower’s final week was settled and paid in full by post, and active Rift runs were banked automatically with their checkpoint gold. A first-time Labyrinth tutorial walks new delvers through the maze.