10.1 Billion Crystal Bonanza! Granblue Summer Festival
- Event duration: 20:00 UTC, August 3, 202605:00 JST, August 4, 2026 - 19:59 UTC, August 15, 202604:59 JST, August 16, 2026
The 10.1 Billion Crystal Bonanza! Granblue Summer Festival event will begin from 5 a.m., Aug 4 (JST).
Overview
Log in and clear raids to get crystals during the event period. A grand total of up to 10.1 billion crystals can be obtained between all players!
You can also get special prizes, tons of crystals, and other awesome in-game items twice per day!
You'll even get special bingo cards for logging in! As everyone collects more crystals, bingo balls will start to appear! If you get a bingo, you'll get awesome prizes!
You must reside in Japan to claim certain prizes.
Eligibility
All players with valid accounts who complete the tutorial by 19:59 UTC, August 15, 202604:59 JST, August 16, 2026 are eligible to play.
For Mobage accounts, a valid account here refers to an account that has been registered (not a temporary or guest account).
Applicable Quests and Raids
Prizes can be obtained from all raids and raid-related Pro quests during the event period, excluding those listed below.
- Event raids
- Co-op quests
- Showdown Pro
- Clash Pro
- Angel Halo Pro
- Primarch Trials Pro
- Six-Dragon Advent Pro
- Eternals Unlock Treasure Pro
A raid will count toward the event regardless of if it was started or joined.
If starting a quest that counts as clearing several raids at once, such as Tiamat Showdown (Hard+), you will be rewarded for the number of total clears.
Prizes
There are two types of prizes that can be obtained during the event: daily crystals and special loot.
Daily Crystals
Crystals can be obtained each day when logging in. Clearing an eligible raid battle also has a chance, based on honors earned, of giving crystals.
Up to 2,000 crystals can be obtained each day.
| Method | Limit |
|---|---|
| Daily Bonus |  |
| Raid Battles (Started) | |
| Raid Battles (Joined) | |
Crystals obtained by individual players will be subtracted from the obtainable grand total of 10.1 billion crystals.
The number of crystals obtained from any given raid battle will vary.
Crystals can no longer be obtained once the grand total of 10.1 billion crystals has been depleted.
Daily crystal and special loot drops won't overlap.
Special Loot
Special loot has a chance to appear when clearing an eligible raid battle (started or joined), and can appear once per day.
One piece of special loot will be selected at random from the following list.
Please note that special loot will be selected at random and can't be chosen by players.
Check the event site for more details about the following prizes.
| Prize | Winners per Day |
|---|---|
| 1,000,000 Yen | 2 |
| Selectable Pay 100,000 Points | 10 |
| Selectable Pay 10,000 Points | 100 |
The 1,000,000 yen prize in this event can't be won multiple times by the same player.
| Crystals | Winners per Day |
|---|---|
|
1,000 |
|
7,500 |
Crystals obtained as special loot will not count against the daily crystal limit.
Crystals obtained this way will be subtracted from the obtainable grand total of 10.1 billion crystals.
Crystals can no longer be obtained once the grand total of 10.1 billion crystals has been depleted.
If the daily number of intended recipients of special loot such as monetary prizes or crystals hasn't been reached, it will be carried over to the following day.
Notes About Obtaining Loot
Battles in Progress
Loot received from raid battles that were still in progress and cleared after the daily reset at 5 a.m. (JST) will count toward the next day's limit.
Pending Battles
Raid battles checked from the pending battles list will count for the day they were added to the list, not the day they were checked.
Battles Started Before the Event Period
Event loot and prizes can't be obtained from battles started before the event period, even if they are cleared within it.
Battles Cleared After the Event Period
Loot can be obtained from raid battles started within the event period until 19:59 UTC, August 17, 202604:59 JST, August 18, 2026. Loot obtained after the event has concluded will count as being picked up on the event's last day.
About Bingo
A special bingo card can be obtained upon logging in. Once the total number of crystals obtained by players reaches certain amounts, bingo balls will appear upon accessing the event screen.
Cards Obtained upon Logging In
One bingo card each will be obtained upon logging in during the following periods.
- 21:00 UTC, August 3, 202606:00 JST, August 4, 2026 - 19:59 UTC, August 5, 202604:59 JST, August 6, 2026
- 21:00 UTC, August 5, 202606:00 JST, August 6, 2026 - 19:59 UTC, August 7, 202604:59 JST, August 8, 2026
- 21:00 UTC, August 7, 202606:00 JST, August 8, 2026 - 19:59 UTC, August 9, 202604:59 JST, August 10, 2026
- 21:00 UTC, August 9, 202606:00 JST, August 10, 2026 - 19:59 UTC, August 11, 202604:59 JST, August 12, 2026
- 21:00 UTC, August 11, 202606:00 JST, August 12, 2026 - 19:59 UTC, August 13, 202604:59 JST, August 14, 2026
- 21:00 UTC, August 13, 202606:00 JST, August 14, 2026 - 19:59 UTC, August 15, 202604:59 JST, August 16, 2026
Bingo cards for periods a player didn't log in will be obtained the next time they log in.
Bingo Ball and Cards
Once the total number of crystals obtained by players reaches the certain amounts, bingo balls will appear and additional bingo cards will be obtained.
This event will occur after fulfilling certain conditions and accessing the event screen.
The numbers appearing on the bingo balls will be the same for all players.
Confirming the Bingo Card
Squares on the card will be automatically filled in based on the numbers on the bingo balls when tapping the View Bingo Cards button on the event screen.
A prize can be obtained upon getting a bingo by filling a vertical, horizontal, or diagonal line on the card.
How to Obtain Prizes
A bingo card details pop-up will appear when tapping on winning cards on the confirmation screen. One of the following prizes can be obtained after tapping the Pick Up Prize button.
| Item | Amount |
|---|---|
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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2 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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1 |
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2 |
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2 |
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1 |
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1 |
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1 |
The probability of winning a prize differs with each item.
Scratch animations might not play depending on the device or the network connection.
Prizes will be sent to the crate even when the animation doesn't play.
Second Chance
For every 3 cards where you don't get a bingo, you get a second chance draw where you can win loot from the same list as the bingo prizes.
How to Play
You can play the second chance draw on the View Bingo Cards screen after fulfilling any of the following conditions.
- If the 10.1 billion crystal total reaches zero
- If the event period has ended
If you have less than 3 bingo cards that didn't get a bingo, the second chance draw will not appear.
After drawing, if you collect enough new bingo cards for another second chance, access the View Bingo Cards screen to draw again.
Leftover Daily Crystals
If the 10.1 billion crystal grand total has any remaining amount after the last day, that remainder will be distributed equally between all players who participated in the event.
Eligibility
Players who have obtained daily crystals or special loot from clearing an applicable raid or quest at least once during the event period.
Expected Timing of Distribution
After Aug 17, 2026 (JST)
Notes
You will be ineligible to claim prizes if you participated in this event with multiple accounts on the same platform.
Event Details
Please check the event site from the link below for more details.
Inquiries
Inquiries regarding the giveaway can be directed to the Granblue Summer Festival Team.
The 10.1 Billion Crystal Bonanza! Granblue Summer Festival Team: [email protected]
Inquiry Period: Aug 4, 2026–Nov 30, 2026 (JST) Hours of Operation: Weekdays 10:00 a.m. to 5:00 p.m. (Excluding weekends and holidays)
- Inquiries are handled in Japanese only.
- Please be advised that it may take some time to receive a reply to your inquiry.