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IdleOn Summer Event Guide (2025)

June 9, 2025

A new Summer Event is taking place in IdleOn, themed around Buried Treasure! This is a limited-time event, so you'll want to try and complete it every day to get the most out of it.

This event will last until June 26th 2025 for a total of 20 days! The event was added for Patch 2.38.

Cooler Boxes

Every day you can collect 50 Cooler Boxes that drop from any mob in IdleOn. Once you obtain 50 Cooler Boxes, you'll also get 1 free try at the new Buried Treasure Mini Game located in Blunder Hills World 1.

After opening 700 Cooler Boxes, you'll be given the guaranteed reward of Treasure Nametag.

You can open the Cooler Boxes for prizes! Double click on them in your Inventory for drops from the following table:

Item Drop Rate Quantity

Gem

20% <= 500 Boxes opened: 5-9
> 500: 3-5
 
10% 1-3
15% 1
5% 1
4% 1
1% 1
0.5% 1
2.5% 1
0.1% 1
0.2% 1
0.1% 1
0.1% 1
0.1% 1
0.1% 1
0.1% 1
6.2% 2
5% 1
or  or  10% 10
or  2% 1
or  or  or  or  or  10% 3-5
3% 1
or  0.5% 1
2.5% 1
1% (must have opened less than 500) 1
1% 1

The Golden Oyster has a 2% chance to drop 3 Event Points, 20% Chance to drop 2 Event Points and a 78% chance to drop 1 Event Point.

Buried Treasure Mini Game

Buried Treasure Mini Game

The Buried Treasure Mini Game requires you to find gold bars in the sand whilst avoiding the game-over skulls! If you get 3 skulls, your game will end and you'll be given a prize based on how many gold bars you found.

You can find the game in Blunder Hills World 1.

You get 1 free play per day once you have found 50 Cooler Boxes.

There is a guaranteed Jackpot win after 58 plays.

You can purchase extra tries for Gems or gain 15 tries from the new Gilded Treasure Gem Pack in the Gem Shop.

You can obtain the following prizes:

Gold Bars Rewards Event Points Chance
>=27 20x Prisma Bubble, x20 1.108%
>=24 8x Prisma Bubble, x7 1.712%
>=20 4x Prisma Bubble, x30 x4 5.354%
>=15 4000 Arcade Golden Balls x2 15.590%
>=9 x200 36.634%
>0 x4 39.602%

Dig Treasure Hunt

Every day there is a new Treasure Hunt that requires you to type the word "dig" on a specific part of a random map in IdleOn. The prize each day is the same for all players and so is the spot.

The prize changes each day, so if you miss any days you won't be able to claim previous days.

You must be on Server Pizza Channel 1 in order to play. When you find the spot, use the chat bar to type the word "dig" and you'll be given the prize.

We'll try and keep this part of the event guide up-to-date with the latest spot throughout the event; but if we're late, use the comments section below to let players know where the spot is and the reward!

Day World / Map Prize Image
1 Yum-Yum Desert / Slamabam Straightaway 450 Gems  
2 Blunder Hills / Vegetable Patch 1 Prisma Bubble Treasure Hunt Day 2
3 Yum-Yum Desert / The Mimic Hole 2x Tries at Buried Treasure P3

Event Shop

Summer Break Shop

 The Summer Break Shop returns and allows you to spend any Event Points you earn from previous events or from the Buried Treasure Game / Cooler Boxes.

You can find the shop in Blunder Hills World 1 by clicking on the Parasol NPC.

The following rewards are available:

Prize Description Cost
Automated Mail Get +5 Boxes at the Post Office every day you play! 15
Stamp Stack Get +3 Stamp LVs every day for a random Stamp 30
Storage Chest Get +12 storage slots for your storage chest 15
Smiley Statue All statues give 1.30x higher bonuses, forever! 30

Once you have purchased all of these rewards, you will then be able to access the Blackmarket page, which has the following rewards:

Prize Description Cost
Extra Exaltedness Get +1 Exalted Stamp use, and +20% Exalt Bonus 35
Bubble Broth Get +5 LVs for a random Alchemy Bubble every day 20
Government Subsidy Get 1.60x more coins from defeating monsters 17
Extra Page Get +1 more Filter Page. Find it on the left side of Cards 22
Content within this article contains copyrighted material of Idleon. We are not affiliated with Idleon or its associated retailers in any way.

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