Note: The information below is presented as received from IGG.COM and is published with explicit permission.

There’s a titan-sized collaboration coming to Doomsday: Last Survivors in the Attack on Titan crossover event.

Doomsday: Last Survivors, as a quick recap, is a zombie survival game set in the near future where you must fight for your life along with several other survivors – while trying to ensure humanity’s future. 

Attack on Titan however is a leading manga and anime series set in a world where humanity is forced to hide in cities by man-eating humanoids referred to as Titans.

This collab sees both Titans and zombies as your enemies – but there’s a lot more to it than that. So read on…

When Does the Doomsday: Last Survivors x Attack on Titan Event Start?

The Wall of Titan: Doomsday Rebellion event begins on the 1st of January, 2026 and ends on the 28th of February, 2026. 

Throughout this collaboration, you can obtain rewards such as the Colossus Titan Shelter Skin, Hero Fragments for Eren Yeager, the Armored Titan Biochemical Beast, the Cart Titan Squad Skin, and so much more.

Exclusive Collaboration Rewards

One of the sub-events is called Surveying Beyond Walls, and it entails exploring locations outside of the walls. With smoke signal, you can find treasures as you search for the Colossus Titan. Some of the rewards on offer include the Abnormal Vehicle Skin and the Attack on Titan-themed namecard. 

For the Wall Reclaim Operation, you must use Thunder Spears when hunting Titans in hopes that you get Hunt Tokens. 

Hunt Tokens are used to obtain random rewards from the Wall Rose prize pools. These rewards are unique and can only be obtained once. These rewards include the Eren Yeager Hero Fragments, the Whispers of the Broken Wall Chat Bubble, and more.

Titan Defense Force Battle Pass

The next sub-event we’re going to discuss is split into two phases and is a battle pass! The first phase begins on the 1st of January, 2026 and ends on the 31st of January, 2026. The second phase starts later on the 1st of February, 2026 and ends on the 28th of February, 2026.

By working through the event battle pass, you can obtain a ton of Titan Defense Force rewards for free. To progress, you need to complete daily missions to earn EXP in return.

If you fall behind, you can opt to purchase levels, too. While optional, there is a purchasable upgrade for the Titan Defense Force battle pass, which grants even more rewards.

Challenging Trials and Bosses

Ready for a true test of skills? You can take part in Corps Trials, ranging from Standard Trials to Advanced Trials. Beating these trials rewards you with prizes, such as Hero Fragments. By completing all of the trials, you can claim the final prize.

Battle against bosses, including the Armored Titan, Cart Titan, and the Colossus Titan, all of which require you to strategically plan out the fight ahead. 

An Exclusive Collectable

There’s exclusive merch to treat yourself to as well, including a Doomsday: Last Survivors x Attack on Titan Exclusive Collector’s Card. This features embossed artwork of characters from both IPs, and has been crafted using laser-engraving techniques to create an item with a truly premium finish and strong collectible value.

You can obtain this unique collector’s Card by taking part in the collaboration’s in-game events, and you’ll also have the chance to grab additional surprise rewards too. You can visit the Event website here to learn more. 

Download Doomsday: Last Survivors now on Google Play, the App Store, and on Steam.

For more information on this event, check out the Official Doomsday: Last Survivors Facebook Page.