Echo Crystals & Relics 💎
The Aether keeps two treasures buried in its islands: one you mine, one you unearth by accident. Both only exist up there - and both are why people keep going back.
Echo Crystal
Deep in the island cores and cave walls, some stone glows pink. That’s Echo Crystal Ore - found nowhere but the Aether.
- Bring a pickaxe. The crystal resists anything else - punching it or swinging an axe gets you nothing.
- Veins are rare and worth chasing: follow caves through the island interiors, or watch cliff faces and the underside of terraces for the glow. The stone serpents coiling between islands carry crystal in their bodies too, for the brave.
- Every mined block drops an Echo Crystal - remember it has to survive the trip home. The void keeps what you drop.
Echo tools
Crystals craft into tools exactly like diamond tools - same shapes, crystals in place of gems:
- Echo Pickaxe, Axe, Shovel, Hoe - noticeably faster than their maxed diamond equivalents, with a look all their own.
- Echo Blade - the sword, sharper than diamond and reserved for level 15+.
Only the real thing works: the recipes match the crystal itself, so ordinary diamonds won’t substitute, and crystals won’t make ordinary diamond gear. If you’d rather sell than craft, the guild’s appraiser buys crystals in bulk.
Relics
Sometimes, digging through Aether stone, something ancient tumbles free - a chime, a glint, and a relic in the grass. You can’t mine for them; the sky decides when.
Three kinds have been catalogued, in rising rarity:
| Relic | Rarity | The appraiser pays |
|---|---|---|
| Echo Tablet | Rare | 80 gold |
| Sky Idol | Epic | 240 gold |
| Hollow Crown | Legendary | 800 gold |
- The Relic Appraiser at the Relic Hunters’ Guild buys them, no questions asked. Lookalikes are worthless - the guild knows the real thing.
- The Aether Hunter always carries one. Survive the Hunt and kill it, and a relic is guaranteed - quality varies, crowns are rare.
- Monument and tower chests hold them too - the vaults of the sky are the surest place to find a relic on purpose, if you can reach them.
- Wasteland expeditions shake relics out of the sand as well - see Expeditions.
- Relics have no use yet beyond gold. The guild’s ledgers hint at more to come.
The economy of the sky
A good Aether run pays several ways at once: crystals for tools or bulk sale, relics for the appraiser, monument and tower chests, and gold from everything you slay along the way. Balanced against the one rule that matters - lose a fight up there and the whole haul goes into the void. Sell often, bank your wins, and never carry more than one trip’s worth of luck.