Echo Protocol 0.5.0-beta for Minecraft 1.21.1 (Fabric)

Echo Protocol 0.5.0-beta.2 — The House Remembers

You were never the only thing being recorded.

This is the first beta release of Echo Protocol and a major update from 0.4.1-alpha.

Highlights

• Added persistent per-player Echo memory
• Added the Room Memory Graph
• Added generated Memory Threads with 2–4 connected events
• Added seven forms of contradictory memories
• Added memory contamination and observation profiles
• Added four intensity presets: Subtle, Standard, Intense, and Custom
• Added new hidden advancements and English/Russian localization

• Added new operator commands for memory, threads, contradictions, contamination, and presets

  The House Remembers

  The world can now remember familiar rooms, routes, sounds, habits, Panic Imprints, and significant events.

  Memory Threads connect these fragments into short generated sequences involving:

• Memory and False Memory Echoes
• Audio Residue
• Peripheral Echoes
• Panic Imprints
• Contradictory memories

• The Original

  Memory Threads are generated experiences rather than fixed quests or a scripted campaign.

  The Original

  The Original now has improved behavior and presentation:

• Visible administrative event spawning
• Faster walking and distinct running behavior
• Acceleration, braking, approaches, and retreats
• Improved body and head tracking
• Door-aware local route planning
• Observation-aware pauses and reactions
• More expressive Waiting, Your Bed, Confrontation, Already Home, and Empty Room events

• Short-lived spectral block-placement actions

  Moving Echoes can visually open nearby doors. Replayed block-use actions may also create temporary spectral blocks.

  These effects are visual-only and automatically restore. They do not permanently modify the world.

  Event Director 3.0

  The Event Director now considers:

• Event history and repetition
• Current danger and combat state
• Active Memory Threads
• Safety and loaded chunks
• Event cooldowns
• Contamination
• Observation style

• Actual spawn success

  Failed events no longer incorrectly consume progression or create stale event locks.

  Persistence

  Echo Protocol now uses versioned, bounded server-side persistence.

  Existing 0.2–0.4.1 progression data can be imported while preserving valid:

• Stage progression
• Cooldown delays

• Familiar locations

  The mod does not persist complete movement recordings.

  Multiplayer and Privacy

• Persistent memories, room graphs, threads, profiles, and contamination remain server-side
• Private Echoes are restricted to their target when shared_echoes=false
• Private sounds, particles, text, and spectral block reactions remain target-only

• The mod never records microphones, voice chat, IP addresses, private messages, or container contents

  Configuration

  Added new configuration options for:

• Persistent memory limits
• Room Memory
• Memory Threads
• Contradictory memories
• Contamination
• Observation profiles
• Intensity presets

• Thread-aware events

  Existing valid configuration values and unknown fields are preserved where possible.

  The legacy default Original movement speeds are automatically upgraded. Custom movement speeds remain unchanged.

  Requirements

• Minecraft Java Edition 1.21.1
• Fabric Loader 0.16.14 or compatible
• Fabric API 0.116.13+1.21.1

• Java 21

  Beta Notice

  This is a beta release. Back up important worlds before installing.

  Automated tests, clean builds, and dedicated-server startup have passed. Some multiplayer and subjective visual scenarios still require additional real-client testing.