Echo World

The Overworld has a reflection. It has been listening.

Echo World adds the Echo Dimension — an exact mirror of your Overworld (same seed, same terrain, same coordinates) locked in eternal midnight and slowly consumed by sculk. Everything is where you left it. Everything is wrong.

Getting There

1. Find Echo Shards (ancient cities, or drops from Echo mobs)
2. Craft Reinforced Deepslate — 8 deepslate around 1 echo shard
3. Build a nether-style frame (minimum 4×5) and right-click inside it with an Echo Shard

Because both dimensions share a seed, ancient cities generate in the same place in both worlds — and their giant reinforced-deepslate frames are valid portals. Light one, and the mod ignites its twin in the mirrored city: two cities, linked as true twin gates.

What's Waiting

• 🌑 Total darkness — the Echo has no skylight at all. Light comes from what burns and grows there.
• 💧 Glowing water — every lake and ocean shines from within, spilling pale blue light onto the shores (Ahtohallan style).
• 🔥 All fire is soul fire — anything you ignite in the Echo burns blue, bright as a torch, and never needs soul sand.
• 🏚️ Corrupted Villages — plains villages rebuilt from echo wood and corrupted stone, populated entirely by zombie villagers.
• 🐄 Echo Fauna — corrupted cows (their milk grants Night Vision), cyan-wool sheep, and echo chickens.
• 👁️ Echo Stalkers & Echolings hunt the surface; The First Echo (a 300-HP boss) waits in rare Echo Spire arenas and drops Echo Wings — elytra that carry the Echo's low gravity with you.
• 🏹 Echo Arrows — shard-tipped arrows that teleport you to wherever they land.
• 🛡️ Silenced Armor — netherite-grade, sculk-grown, with glowing seams. The full set makes you completely inaudible to sculk sensors, shriekers, and the Warden.
• 🌘 Moon gravity — the whole dimension pulls at 30% strength.
• 🪞 The Echo Mirror — build something in the Overworld and a corrupted copy appears at the same spot in the Echo. Chests sync their contents across (mostly).
• 🎵 An original ambient score — the dimension has its own music, wind, and whispers.
• 🚪 Echo Gates, silence potions, echo crystal light, a full echo wood + corrupted stone building set, and more.

Optional Companions (pick ONE)

The mod works standalone, and gets even better with one of these:

⚠️ Never install Immersive Portals and Veil together — they are fundamentally incompatible at the renderer level (this is between those two mods, not something Echo World can fix). Echo World detects the combination and disables its Veil lighting to protect you, but the pairing remains unsupported. They also require conflicting Sodium versions.

Requirements

• Minecraft 1.21.1, Fabric Loader, Fabric API
• Works on servers and in singleplayer; clients and server should all have the mod

Terrain in the Echo mirrors your world 1:1 — whatever you build, whatever you bury, the Echo remembers.