Echo Protocol v0.3.0-alpha

Echo Protocol v0.3.0-alpha

Added

• Stage 3: The Original
• Independent Original Echo behavior
• Familiar-location tracking
• Bed, storage, crafting, furnace, doorway, portal, idle-location, and manual location markers
• Scripted observing, inhabiting, recognizing, replacing, confronting, and leaving states
• Rare replacement events in familiar player locations
• Optional target-only Original text events
• Optional non-lethal confrontation damage
• New administrator testing commands
• Five new Stage 3 advancements
• Persistent Stage 3 progress and cooldowns

Improved

• Late-game psychological horror progression
• Player familiarity tracking
• Safe scripted Echo positioning
• Server-authoritative privacy
• Persistence of event counters and familiar locations

Known Limitations

• The Original uses scripted movement rather than advanced navigation
• Familiar locations are bounded heuristics and do not detect actual ownership
• Mimic advancement progress completed before v0.3.0-alpha is not retroactively imported into Stage 3 progression
• Recordings themselves are not preserved across server restarts

Previous Releases

Echo Protocol v0.2.0-alpha

Added

• Memory Echoes that replay previous player routes
• Corrupted Echoes with desynchronized behavior
• Mimic Echoes that copy current movement with a delay
• Rare scripted hostile Mimic encounters
• Real player skins
• Classic and slim player model support
• Safe Echo spawning and hidden repositioning
• Server-authoritative private Echo tracking
• Configurable atmospheric sounds and visual effects
• Reduced flashing and reduced visual effects settings
• New advancements
• New administrator and testing commands
• English and Russian localization
• Dedicated server and multiplayer support

Improved

• Movement and rotation interpolation
• Echo fade-in and fade-out
• Line-of-sight handling
• Multiplayer privacy
• Echo skin caching
• Spawn position validation
• Configuration validation

Known Limitations

• Some Echo behavior is scripted rather than using advanced navigation
• Recordings are not preserved across server restarts
• Sound design currently relies mostly on compatible vanilla sound events
• Some menu and portal-state detection is limited by server-side information

0.1.0

• Initial standalone Fabric implementation for Minecraft 1.21.1.
• Added bounded player recording, per-player stages, server-directed Echo replays, admin commands, localization, placeholder assets, and advancements.