The Upfall

1.2.0

Quantum

• Quantum objects only behave while nobody looks at them: they stay still when observed, in light or under a held light.
• Veil Gas: an invisible gas that hurts unprotected creatures. Bottle it with a glass bottle and release it on a block.
• Veil Mask, crafted at the smithing table from a Veil Mask Blueprint, an iron helmet and a Kairite Gear: filters the Veil Gas and reveals it.
• Gas caves: worm-like tunnels carved inside the islands and filled with Veil Gas, some dug out with Ironbark supports, with dead-end scenes (abandoned pickaxes, cracked masks, scattered bones, spent lanterns) and supply caches.
• Flicker Shard Clusters grow on the cave walls and jump elsewhere when unobserved; mine them while keeping an eye on them to get Flicker Shards.

Shifting Vault

• A glass maze buried deep inside the islands, reached through a long tunnel.
• Its Shifting Chest moves whenever you look away. Frost Glass fogs up to block your view, the lamps go out, the floor crumbles under your feet and something whispers behind you.
• The chest holds the Quantum Pedestal Blueprint and Quantum Stones.

Quantum Pedestal

• Built from a Pedestal, a Quantum Stone and its blueprint, then ringed with eight Pedestals holding the offerings.
• Place a Levitite piece on it, sneak and use it with an empty hand, then keep watching it until the incantation completes. Looking away makes it collapse.
• Nine upgrades for Levitite gear, up to two per piece:
  • Veilsight (helmet): filters and reveals the Veil Gas.
  • Uncertainty (chestplate): chance to dodge incoming hits.
  • Zipline (chestplate): latch onto ziplines with an empty hand.
  • Anchored (leggings): immune to knockback.
  • Solidifier (leggings): bounce on Mist, sneak to sink into it.
  • Mosswalker (boots): run much faster on moss.
  • Superposition (pickaxe): mining an ore also mines an identical neighbor.
  • Entanglement (sword): the next two creatures you hit share their wounds.
  • Rewind (any armor piece): once a day, cheats death by rewinding to the last solid ground.
• Incantation recipes are data-driven and shown in JEI and EMI when installed.

Misc

• New advancements for gas caves, Flicker Shards, the Shifting Vault and incantations.
• Full French translation.
• Mod config: observation rules, gas damage, cave and vault generation, incantation and upgrade tuning.
• Sky Almanac: an in-game guide (GuideME) covering progression, world, creatures, structures, materials, machines and blocks.
• Reworked item textures.
• The Chronospire, Pearl Aerie and Crystal Grotto are rarer (roughly twice the spacing between them).

Pearl Aerie

• New rare structure in the Drifting Archipelago: an abandoned city of the sky builders, floating between the island layers. A tall keep and up to seven smaller towers are linked by pearlstone bridges, some of them collapsed.
• Floors can be libraries or hanging gardens; the keep has an updraft shaft running through every floor. Long bridges may widen into a landing with a skywater basin or an obelisk. Cloud and mistglow lanterns light the towers and bridges, and glowvines and vines hang below the decks.
• Traps: weathered bricks that crumble for good under your feet, arrow traps guarding the keep treasure, and Duskwing and Cragmaw spawners.
• Loot: tower caches, armories with smithing templates and enchanted books, and the keep treasure.
• Gravity Sceptre: found only in the keep. Use it to become Weightless and walk on the ceiling above you; use it again to let go. Repaired with Levitite Ingots.
• New blocks: Cracked, Chiseled and Mossy Pearlstone Bricks (with mossy stairs, slab and wall).

Tilted Reliquary

• New very rare structure above the cloud sea in the Drifting Archipelago, Mistsea and Gilded Ridge: a cluster of hollow lattice-stone cubes tilted 45 degrees and frozen mid-shatter, with no island nearby.
• Reached by an updraft column from the cloud sea, then by updraft vents, ziplines and floating beams. Satellite cubes hold an archive, a hanging garden, an echo hall with a Duskwing spawner, a collapsed room or a shard vault.
• Four Fold Shards, hidden in satellite chests, fill the four Fold Sockets outside the core's Fold Seals and dissolve them.
• Core chest: the Warden's note and the core treasure. Three lore books tell the story of the Surveyors of the Fold.
• Fold Anchor: use to set an anchor, use again within 30 seconds to snap back to it with fall distance reset. 64 uses, 5 second cooldown, repaired with Cloud Pearls.
• No natural mob spawns inside a reliquary, and never any Hanging Roots or upside-down islands around one.
• New blocks: Lattice Stone, Carved Lattice Stone, Lattice Beam, Fold Socket and Fold Seal.

Fold Warden

• A two-phase boss sealed in the reliquary core. It wakes up when the fourth Fold Socket is filled, and the seal chamber floor closes back into lattice stone as the seals dissolve.
• Phase 1, the Fold: a tilted lattice cube shielded by four Fold Satellites. Destroy them to open its shutters and expose its eye; they reform after 30 seconds. Attacks: Satellite Slam, Tilt (pushes everyone sideways) and Weight of Falling (lift then slam, a filled Fold Socket keeps you safe).
• Phase 2, the Plummet: at half health it unfolds into a wyrm of twelve lattice segments that can all be hit. Attacks: Coil, Shed (boomerang tail segments), Updraft Dive and Lattice Breath, which locks its target in a temporary Fold Lattice cage. Enraged below a quarter of its health.
• Custom boss bar for each phase and dedicated sounds.
• Drops the Fold Anchor, the new Fold Heart and 1 to 3 Fold Shards. New advancement: Unfolded.
• New Sky Almanac page.