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Full notes
Full Book Of Yog Idle RPG 依盖之书 update
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What changed
- UI and audio
- Events
- Server
- Performance
- Balance
- Gameplay
Book Of Yog Idle RPG 依盖之书 changes
Dear Commander:
We plan to start update maintenance on 15:00, June 26 (UTC+8). The maintenance is expected to take 120 - 240 minutes.
After the update, the Leafbound Sachet avatar frame will be distributed to all players.
*Please pay attention to the community and in-game rolling announcements for specific times.
After the maintenance, please update the client to the latest version before start the game.
During the maintenance, the players will be forcibly disconnected and unable to login. Please logout before the maintenance to avoid any data loss.
The following is the introduction of update contents:
Star Corona SP — "Sinister Shade" Arrives!
Steam post imageSteam post image
Reach Sanguine 2 with Shadowy Mirage · Ying and consume an Astral Engraved Rule to activate her Star Corona SP form — Sinister Shade. She will gain an all-new skill set, exclusive Sanguine skill, exclusive weapon and relic, a standalone Archive entry, and brand-new voice lines.
► Astral Engraved Rule can be obtained from: Event - Fate Starwheel
► After the update, Fate Starwheel Reset Ticket ×1 will be distributed to all servers. Please claim it via in-game mail.
Use this item to reset the Fate Starwheel.
SP Blackguard Rerun — Shadowy Mirage · Ying
Event Period: After the update ~ July 29, 2026
Limited-time Optional Banner
Available Blackguards in this Banner:
Coltish Artillerist, Legendary Dragon, Foxy Archduchess, Coffin Morrigan, Thorny Bramble, Centaur Minerva, Schneemond Princess, Shadowy Mirage, Nirvana Ignis, Judgement Hammer, Lady Swan Lake, Shamneko in Night, Blooming Ink Deer, Marine Rime, Flabellum Seraph, Falling Samele, Tundra Thunder, Everlasting Sol, Flicker Pierce, Jadeform Immortal, Phantasmal Dream, Double Shot Pursuit, Wightbone Dragon, Twinkle Palette, Skyborne Machina, Golden Hatch, Blazing Shear, Celestial Luan, Silverblade Oath, Green Whisper, Crimson Warshadow
Duration: After the update ~ July 11, 2026
The selected SP Blackguard may be freely swapped for another available SP Blackguard before they are successfully summoned. Pity counter is retained when swapping.
Once the selected SP Blackguard has been summoned, they cannot be changed to another SP Blackguard.
Shadow Spirit Challenge Opens!
The Stargate Era is a land of shifting tides and gathering storms. Deep within the courtyard, a mysterious Shadow Spirit Trial Tower stands tall — conquer its trials and claim rich rewards!
First Season Tower Lord — Tweaking Tyrant, awaits your challenge!
Gameplay
Shadow Spirit Trial Tower:
The tower consists of 7 floors. Heroes who clear each floor will be temporarily bound to stabilize the passage to the floor below.
Upon conquering the 7th floor, you will earn the right to challenge the Tower Lord.
Unleash everything against the Tower Lord! The damage you deal will determine your leaderboard ranking.
Shadow Spirit Hex Marks:
Before each battle phase begins, you may voluntarily toggle on additional Hex Marks to increase the challenge difficulty for the upcoming phase.
The more Hex Marks you activate, the higher the difficulty tier. Successfully clearing a higher difficulty means a better spot on the leaderboard.
Quest System:
Complete quests issued by the Tower Lord to earn rare avatars, Modification Stones, summon items, and more rewards.
Court of Echoing Shadows Plaza:
Home of the Shadow Spirit Trial Tower. Under construction... Stay tuned~
Event Rules
Yggdrasil Level 1,500 to participate
Entry: Event System → Event → Shadow Spirit Challenge. Tap the poster button to enter.
Duration
The inaugural season is now live, beginning with a Preseason.
Duration: June 25, 2026 08:00:00 ~ July 29, 2026 11:30:00
The season is divided into two phases:
Normal Phase: Base difficulty available. Players can familiarize themselves with the gameplay during this phase.
Crisis Phase: Unlocks on Day 14 of the season, featuring more challenging difficulties.
Event Rewards
During the Normal Phase, complete Trial Tower challenges to earn the [Tweaking Tyrant] Avatar.
[Leaderboard Rewards] After season settlement, exclusive currency — Tyrant Bone Coins — will be distributed based on final leaderboard rankings.
Currency Usage: Tyrant Bone Coins can be exchanged for various rare items in the upcoming Shadow Spirit Shop.
- NoteThe Shadow Spirit Shop and its exchange contents will be available in a future update. Stay tuned!
Optimizations & Adjustments
Star Gate maze special drops replaced with Star Core Treasure
Companion Optimizations
Fusion rule adjustment: After fusion, the resulting companion's aptitude rating will not be lower than that of the companions used in fusion
Deploy interface optimization: When opening the companion deployment interface, the currently deployed companion will be pinned to the top
Rune Quick Equip optimization: The Quick Equip function now supports auto-equipping Sub Runes into empty rune slots
Hero respec cost at the Dock adjusted from 20 Diamonds to 0
Oblivion Places new one-time stage: Unstable Oblivion. Rewards upon clearing include Covenant Crystals, Oblivion Equipment Select Chest, Main Rune Select Chest, and more
Yggdrasil system slot count increased to 150
When promoting Oblivion Treasures, if treasure shards are insufficient, players may now spend Sanguine Stones to substitute for the required shards
Equipment obtained during main story exploration changed from direct equipment drops to Equipment Select Chest ×1
Otherrealm Vault equipment retrieval limit via cumulative spending increased, up to a maximum of 96 pieces
Mall Update
Added: Contract Support Pack II, Contract Renewal Pack, New Empowerment Pack, Perfect Modification Pack, Legendary Essence Pack, SS Star Corona Pack
Removed: Fickle Stone Pack, Contract Support Pack, Contract Collection Pack, Summer Contract Pack, Moonlight Pack, Energize Pack, SS Whisper Pack, SS Memory Pack
Starwish Shop Update:
Heart of Vows price reduced to 1 Starwish Stone
All class Soul Coins unified into a Select Chest
Contract Certificate purchase limit increased to 15, quantity increased to 30
Archaic Shattering Stone adjusted to 20 Starwish Stones for 10
Added Add Prophecy Stone and Solidification Removal Stone
Blacktide Shop Update:
Pure Sanguine Stone purchase limit increased to 400
Labyrinth Shop & Guild Shop Update:
Added SS Essence (Legend+)
Added Obsidian Ingots and Sacramental Salts
Removed all S-rank Blackguard shards, replaced with S-rank Warp Shards
Removed all A-rank Blackguard shards, replaced with Rare Warp Shards / Epic Warp Shards
New Seasons for Regular Modes
Everwinter Land
[Everwinter Land] New season is about to start. Due to the blessing of fire, FIRE type heroes will enjoy additional combat ability improvements in the battle of [Everwinter Land]
Participate in the Everwinter Land Rankings. Commanders who place at the top will receive the following rewards:
Time Capsule:Genesis S Avatar Box,Genesis Frame Box
Void Chasm
Duration: 2026-07-01 ~ 2026-07-29
Top commanders on this season’s leaderboard will receive the following rewards:
Exclusive Avatar:Amber Bright Humming
Time Capsule:Genesis S Avatar Box,Genesis Avatar Box,Genesis Title Box
Academy Cup
Duration: 2026-07-01 ~ 2026-07-29
Participating in the Academy Cup competition, the top-ranked commanders will obtain the following rewards:
Exclusive Avatar Frame:Mauve: Dream astray(S34)
Time Capsule:Genesis S Frame Box,Genesis Frame Box
Events
Starluck Blessing - Ying's Weapons
“A trace left behind when a star falls across the sky — once believed to be a blessing from the gods.”
Duration: After update ~ 2026-07-29
Spend Starwish Stone to draw from the event pool for a chance to obtain Ying's weapon skin — Darkflame Shadow Blade, along with Ying's [Darkflame Belle] skin set and matching headwear, Whetstone, bound Gold, Archaic Prefix/Suffix Removal Stones and Addition Stones, Otherrealm Coin, and more. After drawing the grand prize, subsequent rounds of premium value packs will be unlocked for purchase.
Duration: After update ~2026-07-29
Reach specific cumulative spending milestones during the event to earn generous rewards including Sanguine Stones, Covenant Crystals, Whetstones, Rift Quartz, Perfect Addition Stones, SS Essence (Legend+), SP Sanguine Mark Choice Box, Starry Emblems, and more!
Accumulate Starry Emblems to exchange for items in the Black Market — Limited-Time Spending Shop, including limited titles, Light & Dark Sanguine Mark Choice Box, Contract Certificates, Eternal Grimoire Leaves, SP Relic Selection Chests, and more.
Old Blade Sheathed
Event Period: 2026.7.1 ~ 2026.7.13
Rewards: Otherrealm Coin ×220K, Covenant Crystal ×1,050
New Edge Drawn
Event Period: 2026.7.16 ~ 2026.7.29
Rewards: Otherrealm Coin ×220K, Covenant Crystal ×1,050
Event Rule
Duration the Event, every【Sanguine Summon】will gain point, accumulate point to obtain massive pts reward. Event reward can be claimed up to 6 rounds
This event will have server/Cross server ranking, and will provide related ranking reward (The Heart of Summon leaderboard will be replaced)
Expected Event Duration
After update~2026.7.8 12:00
Event Rule
During the Event, consume FP will have chance to drop event coin「Sakura Emblem」. 「Sakura Emblem」can be used to exchange various reward on event shop.
Expected Event Duration
2026.7.15-2026.7.21
Blaze the Trail
Event Rule
During the event period, every 1 FP commander consume will gain 1 event point, accumulate point to certain amount will gain stage reward, there will be 7 stage, up to 6 rounds.
Single-server and Cross-server leaderboard will be set on this event, rewards will be distributed based on the total event points accumulated during the event.
Expected Event Duration
2026-7-15 08:00 - 2026-8-13 12:00
Event Rule
During the event period, every blackguard summon will give 1 point, accumulate points to obtain massive accumulative point reward.
Expected Event Duration
2026-7-22 08:00 – 2026-7-28 12:00
Event Rule
During the Event, Commander can obtain massive accumulative point reward after reaching certain Academy Cup point.
The Event will have separate Leaderboard, Blacktide Medal and Exclusive Avatar will be offered as ranking reward.
Expected Event Duration
2026-7-15 08:00 - 2026-7-21 12:00
Future Update Plans
Fortune Preview — quick stage-skip for main story stages
Construction of the Court of Echoing Shadows Plaza and continued optimization of Shadow Spirit Challenge
Leaderboard honor optimization — new Contact Card system
Gradually adding Misty Mountains, Journey, and Rift achievements, with additional summon rewards to accompany them
Pet Shop and more monster-girl companions
Source
Changelog.gg summarizes and formats this update. How we read updates.
