Idle Heroes codes (December 2025)

Idle Heroes is all about battling fearsome villains and putting together team combinations of undefeatable warriors to dominate your enemies.

Summon Scrolls lets you add new heroes to your squad to do just that, and luckily, you can get plenty of them via redeemable codes alongside Gems and Cores of Transcendence — so here are all of the latest codes in Idle Heroes and how to get them.

Updated December 8, 2025: One new code added!

Active codes in Idle Heroes

With ‘WINTERIH25’ being added to the game, there are currently three active codes you can redeem in Idle Heroes right now. The remaining two codes have been around for some time now, but they are still working in-game:

Note: While the ‘IH777’ code is currently active, you’ll need to clear Campaign 3-10 to be able to redeem it.

How to redeem codes

Before redeeming codes, you’ll need to complete the tutorial, which doesn’t take long, especially if you speed up the battles. Once you’ve done that, follow these simple steps to claim your rewards:

• Open Idle Heroes, then go to the ‘Cool Events’ menu located at the top-right of the screen.

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• A window will appear. Select the ‘Cool Events‘ tab as shown in the image below.

• On the left-hand side, you’ll see the ‘Exchange gifts‘ tab, which you’ll likely already be on.
• Enter any of the above codes into the box and click ‘Exchange.’
• Head over to your in-game mailbox and collect your reward.

Certain codes might require you to complete certain stages alongside the tutorial. When you try to redeem them, you’ll be notified of what stages you need to beat to get the rewards.

All expired codes

What are Idle Heroes codes used for?

Codes can provide Gems and Diamonds to use in the marketplace, casino, and arena. Players can also get Scrolls that can be used for Heroic Summons and Cores of Transendance to summon rare 5-star heroes in the Compass of Transeded.

Those are all the Idle Heroes codes for December 2025. For more free rewards, check out our Pokemon Go, Dead By Daylight, Destiny 2, Warframe, and Genshin Impact pages.