KAIJU NO. 8 THE GAME has launched its PC version on Steam®, featuring Main Story Chapter 4: London Defense Operation and introducing two new ★5 characters: Chester Lochburn and Kikoru Shinomiya. Players can link their accounts from the mobile version for continuity. Chapter 4's narrative involves characters Kafka, Kikoru, and Sagan teaming up with Chester Lochburn to combat Kaiju in London. A login bonus offers up to 10 Pick Up Gacha Tickets, and the Gacha Fes will include the new characters, with a promotion for complimentary pulls. Chester Lochburn is a strategic CLOZER member with a new weapon, the AR-Anollococ, while Kikoru Shinomiya uses the Dimensional Numbers Weapon 2 and has a new weapon, the Fs-Magni. The game is co-produced by Akatsuki Games, TOHO, and Production I.G, and is available on multiple platforms, including the App Store and Google Play Store, supporting various languages. It is free-to-play with in-app purchases.