Envelope

0.8.0 - Echoes In The Dark - 2026-10-20

Trailer: https://youtu.be/emig1jCE27o

New Features

Courier Bat

• Mail can now be delivered at night using the Bat
  • Bat delivers mail 2 times faster than a Pigeon
• Added slot for bat food (Spider Eye) to the Mailbox
• If no bats are nearby, one will be spawned for delivery
  • Spawned bats will despawn after delivery
• Service deliveries (created by the game) will use bats at night
  • When the courier passes through the mail hub (virtual point) - it will be changed to time-appropriate one (if day changes to night or night to day while delivery is in progress)
• Added The Pigeons and the Bats advancement

Seal

• Added Soulbound Seal Stamp
  • Obtained by crafting any Seal Stamp with an Echo Shard
  • Sealing an item with it creates a Soulbound Seal, which will prevent the item from dropping when sealer dies, and another players from opening it until the sealer dies
  • Has 8 uses and will return back to original stamp when depleted
• Added 16 colors of seals and Seal Stamps to apply them
• Added Gold seal material for Patreon supporters
• Added Seal Stamp with cube die recipe to Mail Service - requires a Grass Block
• Added skull_and_bones symbol

Services

• Added Cloud Depository service address:
  • Remote storage that accepts and stores sealed items until a Withdrawal Request is sent to it
• Added Spider Eye -> Pumpkin Seeds mailing recipe to Mail Service
• Added 2x Block of Copper -> Oxidized Copper recipe to Mail Service
• Added 6x Red Wool -> Paper Box recipe to Mail Service

Misc

• Added Ghost Pigeon variant
  • Has a chance to spawn when a Villager is converted into a Zombie Villager on a full moon night
  • On Halloween: spawns in village at night; can appear as a service courier
• Added Service Letter:
  • Crafting a Letter and Quill with specific items will create a letter with "meaning" that various systems can understand and respond to
• Added Tattered Letter item (previously was just a data component on the Letter)
• Added original recipient to the delivered mail tooltip (To: [address])
• Added dedicated creative-mode tab for Envelope items
• Added Collapsed Mail Hub Explorer Map to Ruined Portal chest
• Scooping waste from Pigeonhole now has a 50% chance to drop a Feather
• Added particles to Pigeonhole waste scooping
• Added a way to copy Address Tag and Payback Tag contents into another tag by applying it in inventory
• Added visual indicator to application target items when carrying (picked up with mouse) an applicable item (Address Tag, Payback Tag and Seal Stamp)
• Added "opened" models to Paper Box, Package, Payback Box and Payback Package items when player opens their interfaces
• Added Letter, Package, Bird and Bat symbols to Chalk mod when installed alongside it
• Added Ukrainian localization

JEI Integration

• Added information about service addresses and some other items
• Added information to a couple of mailing recipes
• Added aliases to some items and ingredients for easier searching
• Address in mailing recipes is now clickable and will show usages when clicked
• Updated how service address ingredient renders

Changes and Fixes

Seal

• Changed sealing sound
• Changed Seal Stamp recipe to require a Honeycomb and any wooden planks, instead of two wooden slabs
• Redesigned or refreshed all seal symbol textures
• Changed seal symbols:
  • letter -> letter_and_quill
  • block -> cube
• Default die (first letter of player name) will not show up in Seal Stamp's tooltip if outside of inventory or menu (in JEI for example)
• Removed seal symbols: skeleton, skeleton_smirk, emerald, default.

Misc

• Book and Quill and Letter and Quill mailing recipes no longer require a Slimeball
• Updated all item textures
• Updated mod icon
• Small update to placed letter textures
• Sealed Package is no longer placeable as a block
• Advancement It's Filthy In There is no longer hidden
• Increased Pigeon delivery travel speed (when in background) from 20 to 25
  • Existing configs would need to be updated or regenerated for this change to apply after updating from previous version
• Courier appear/disappear (poof) particles now visible at higher distances
• When the courier finishes a delivery, it will play its ambient sound
• Slightly increased courier mailbox mail pickup range
• Increased courier ascend distance from 16 to 24 blocks (position above the mailbox where it disappears)
• Small improvements to applicator items (Address Tag, Payback Tag and Seal Stamp) r-click application behavior
• Fixed Payback cancelling recipe not working properly if remainder was present (when more than 1 Payback Tag was sent)
• Fixed Mailbox block not breaking properly if it has mail inside
• Fixed mail not delivering to the player address in some cases when letter casing in address definition didn't match player name exactly
• [NeoForge] Mailbox now has an ItemHandler capability, making it compatible with most modded logistic blocks (like Create's Chute, Funnel, etc.)
• Fixed crash when mailbox on a Sable sublevel with /sable forceload is loaded
  • Stored mail will not load correctly; Avoid using /sable forceload when mailbox is present on a sublevel or don't use mailboxes on force-loaded sublevels until this issue is resolved
• Fixed crashing with recent JEI versions (above 19.52.0.421)

Technical Changes

Config

• Added config options related to bats
• Added delivery.phase_duration_modifier and delivery.ascend_distance options to server config
• Added hide_default_seal_stamp_die_outside_of_inventory option to client config

Item components

• envelope:seal definition now has an optional lock field
• Added player_uuid to the envelope:seal item component.
• envelope:address has been replaced with envelope:address_tag_address
• envelope:mail_recipient has been replaced with envelope:mail_address_tag
• envelope:mail_payback_request has been replaced with envelope:mail_payback_tag
• envelope:mail_sender, envelope:mail_delivery_log and envelope:mail_returned have been replaced with a single envelope:mail_delivery_info component
• envelope:mail_id has been removed

Commands

• Added /envelope mail broadcast command
• Added /envelope seal_lock create|unlock|list command that can be used to create arbitrary locks for quests, etc.
  • Created lock also needs to be set in the item's seal to work
• Added /envelope debug terminate_all_deliveries command
• /envelope send have been changed to /envelope mail send
• /envelope mail send command now fails when recipient is not found
• /envelope mail send now has an additional "recipient" parameter, allowing to specify the target without changing sendable item components (a bit easier to type)

Misc

• Bundled Mortaar library with the mod
  • Mortaar is a library mod that will be used to aid in mod development and reduce code duplication
  • As a player, you will not see any difference, apart from an additional mod entry in the mod menu
• Moved seal-related textures from textures/seal to textures/gui/sprites/seal folder to allow for animations with .mcmeta files
• Changed field texture to sprite in envelope:seal_material and envelope:seal_symbol definitions
• Added service_addresses.mail_service.courier_death_notice server config option
• Replaced single delivery.courier_travel_speed config option with separate delivery_travel_speed for pigeons and bats
• Replaced pigeon.damage_evasion_chance_while_delivering config option with delivery.courier_damage_evasion_chance
• Replaced #envelope:bypasses_pigeon_delivery_evasion damage type tag with #envelope:bypasses_courier_delivery_evasion
• Changed delivery.spawning_respects_domobspawning_rule config option to delivery.spawning_ignores_domobspawning_rule
• Minor changes, moves and renames of some config options
  • This might cause some of the settings to reset, if they have been changed
• Replaced vanilla sound events with custom ones
• Replaced leftover hardcoded text lines with translatable components