Idle Heroes codes (September 2025)

With the Rate Summons and Diamonds redeem codes provided in Idle Heroes, you can create a strong team of undefeatable warriors to dominate the mobile game.

DH Games’ mobile RPG, Idle Heroes, is all about battling fearsome villains and putting together tough team combinations. Summon Scrolls lets you add new heroes to your squad, and you can get plenty of them via codes.

Below, you’ll find all the latest details on every code that’s not expired yet, and steps on how you can get them in game.

Active codes in Idle Heroes

As of September 1, 2025, there are currently three active codes available to redeem in Idle heroes, with ‘IH4UCODE9’ being the newest one. These codes have been manually checked and we can confirm them to be working at the time of writing:

Code	Reward
IH4UCODE9 (NEW)	x1,000 Gems, x10 Heroic Summon Scrolls, x10 Core of Transcendences
IH999	x60 Summon Scrolls
IH777 (New players only)	x50 Summon Scrolls

According to the game’s official social media page, the ‘IH4UCODE9’ will only available until September 30, 2025. So, make sure to redeem it before then if you don’t want to miss out on the free rewards.

It’s also worth noting that 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 or at least complete Campaign 1-4, which doesn’t take long as long as 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.
• 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 September 2025. For more free rewards, check out our Pokemon Go, Dead By Daylight, Destiny 2, Warframe, and Genshin Impact pages.