Exciting Event 'Biochemical Beast Mutation' Launches for Doomsday: Last Survivors

Get Ready for 'Biochemical Beast Mutation' in Doomsday: Last Survivors

IGG, a leading mobile gaming company based in Singapore with a Japanese office in Shinjuku, Tokyo, has announced the launch of a thrilling new event, 'Biochemical Beast Mutation,' starting on October 21, 2025. This event promises to engage players in a unique competition centered around creating and enhancing new creatures within the globally popular zombie-themed strategy simulation RPG, Doomsday: Last Survivors.

Event Overview

The 'Biochemical Beast Mutation' event invites players to unleash their creativity by synthesizing new creatures known as 'Biochemical Beasts.' Each player's creative abilities will be put to the test as they race to earn the highest points based on their synthesizing prowess. Those who excel in this competition stand a chance to win exclusive prizes, including the one-of-a-kind figurine, 'Zombie Hunter - Jayden,' specially made for this event.

Key Features of the Event

- Synthesis Challenge: Players can combine genetic materials and items available in the game to create a variety of Biochemical Beasts. With 45 possible combinations to discover, the thrill of completing a unique collection and experiencing the excitement of yielding new creatures is truly captivating.
- Exclusive Rewards for Top Ranked Players: The top 50 players in the points-ranking during the event will be awarded rare prizes, including the 'Zombie Hunter - Jayden' figurine and a unique merchandise set. These rewards are highly sought after by collectors and fans alike.

Event Timeline

- Point Acquisition Period: October 21, 2025 (Tuesday) 9:00 AM – October 27, 2025 (Monday) 8:59 AM (JST)
- Synthesis Period: October 21, 2025 (Tuesday) 9:00 AM – October 28, 2025 (Tuesday) 8:59 AM (JST)
- Reward Collection Period: October 28, 2025 (Tuesday) 9:00 AM – October 30, 2025 (Thursday) 8:59 AM (JST)

How to Participate

Players can join this event through the in-game event page. Points necessary for synthesis can be accumulated by visiting the event page, completing daily tasks, and making specific pack purchases. Be sure to check the in-game announcements for detailed rules!

Noteworthy Rewards

- 'Zombie Hunter - Jayden' Figurine
- Exclusive merchandise set from Doomsday: Last Survivors
- Legendary Hero Shards
- A variety of other in-game luxurious items await you!

About Doomsday: Last Survivors

- Title: Doomsday: Last Survivors
- Genre: Zombie-themed Strategy Simulation RPG
- Pricing: Free to Play (with in-app purchases)
- Official X Account: Follow Us Here
- Available on: iOS, Android, Amazon, Steam
- Download Here: Download Link

About IGG

Founded in 2006, IGG is a global player in mobile online game development and publishing, with its headquarters in Singapore and branch offices in several countries including the USA and Japan. The company is listed on the Hong Kong Stock Exchange (Stock Code: 0799) and has provided its games, including popular titles such as Lords Mobile, Doomsday: Last Survivors, and Castle Clash in over 200 countries in 23 languages. Get ready to enter the world of Doomsday and make your mark in the Biochemical Beast Mutation event!