Otherside: The Sift

1.7.0 (FORGE 1.20.1 · NEOFORGE 1.21.1)

NEW DIMENSION FEATURES
- The Tides: the Sift has no sun, moon or stars — a 20-minute cycle of Thrive (morning) / Flow (day) / Endure (night) with own sky, light and mob balance; /time set sift thrive|flow|endure|<tick> and /time query sift.
- Custom sky: shaded dome and soft pastel clouds, colours per tide.
- Underground biomes (Ichor Caves, Hollow Gardens, Infected Caves) split by depth and humidity; caves, deep caves, canyons and big caverns.
- Ichor Caves: flat ichor lakes (flooded only under a solid roof), crystal floors and giant crystal towers, tiny ichor puddles everywhere, ichor kelp, schools of ichor slime-fish and drifting souls.
- Hollow Gardens: red-sculk caves, grass floors with small bare spots, many sculk vines, torchflowers and pitcher plants; only the Slabber, Nuzzle and Sniffer live there (a spawner works even in the dark).
- Infected Caves now work like the Deep Dark (sculk veins, sensors, shriekers, darker fog, Stalker / Scavenger / Hunter / Trapper).
- Carapace: patches of red and yellow grass ground with grass on it, and scattered grass on bare sand.
- Torchflower and pitcher pod can be planted on the Sift's grass; the Sniffer digs there.

NEW STRUCTURES
- Illager Stronghold (Lullaby Hills): boss plaza with the Illager portal (Sift portal blocks), road network (straight, long, triple, branch, crossroad, corner, dead ends), small paths with crossroads, armories (melee/ranged), ravager pens (with a Ravager), sifter cage (with a sifter), Illager barracks and five new buildings (forge, mess hall, prison, watch post, storehouse), lamps, ichor pipes and chopped Sift trees around, illagers spawning inside (vanilla + Eternal Shard: Illager Rise if installed), loot in barrels and chests. Dormant Monstrous Opus awakens when the Supreme Evoker (called by a trigger on the plaza) dies.
- Base 2 — ice keep of the Prime Enchanter (overworld snowy biomes), the boss rises by a trigger.
- Copper Tower on the plains: stone bricks and copper, winding stair, big platform, Copper Monstrosity by a trigger.
- Boss arenas for the Sculk Monstrosity and the Monarch; closed Sift return portals; fossils; soul trees.

NEW ITEMS AND MECHANICS
- Soul Block (durability = souls) with a three-symphony menu; ten symphonies (creation / destruction); drops from active Echo Golems, each Illager council member and the Monstrous Opus; some Echo Golems hand one over; the Singer wants 3.
- Memory Crystal (soul storage and death protection), crystal clusters and blocks.
- Resonator, Sculker Claws (dual, drops), Singer's Flute.
- Talisman slots (3, with creative-mode support) and talismans: Emblem of the Sift, Talisman of the Ichor Diver (immunity to ichor — the key to ichor lakes), Souls, Sight, Tides, Gardener, Featherfall — all with icons drawn in the same style.
- Ichor is lava-like in damage but does not break kelp, the Sift portal or other blocks any more.

MOBS
- New: Slabber (siftcow) in gardens, ichor slime-fish; Sniffer added to Hollow Gardens.
- Dormant Monstrous Opus (no animation, "no energy" texture from the game).
- Hostile mobs also spawn by day (fewer); morning favours passive mobs, night hostile ones; boss bars show only within ~56 blocks.

FIXES
- Sift trees only grew near alien pillars — fixed.
- Ichor lakes from caves opening onto the surface — fixed (a solid roof of 10 blocks is needed).
- Ichor leaking out of the Stronghold's dead ends and plaza edge — sealed.
- Talismans did not work in creative mode — fixed.
- Rift crashed on structure load ("Value 14 outside of range [0:7]") — jigsaw depth is now 7 on 1.20.1.
- Cave carvers crashed world creation on 1.20.1 — carver JSON fixed.
- Blub carapace skin corrupted (rainbow) — replaced.
- Several vine, kelp and portal block issues.

KNOWN ISSUES / NOTES
- This is the first public build: some features were only compile-checked and are still being tested in-game.
- Both builds share the same mod id — use the build that matches your game version.

EARLIER WORK (INTERNAL, BEFORE 1.7.0)
Animated mob models and abilities, sounds, VFX, the Sift dimension and its three surface biomes, Ichor liquid with its game-accurate texture, the Singer and the Friend of the Sift effect, Echo Golem, the Tuner key mechanic, the Lootkin, plateau noise, a from-scratch shader pack (MIT).