Square Enix and developer Tactic Studios have confirmed that their upcoming multiplayer murder mystery action game KILLER INN will be holding its second closed beta test this October. The test is scheduled to run from October 3 until October 13 at, giving players another opportunity to experience the unique blend of social deduction and action gameplay that sets the title apart.

The second #KillerInn closed beta test will take place in one month’s time.

Those who participated in CBT 1 will automatically be able to join CBT 2.

New registrants will be informed of their ability to participate on October 1.
Register here: https://t.co/8cqn9RVTLo pic.twitter.com/9YXrhqhrea

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— KILLER INN (@playkillerinn) September 4, 2025

Returning and New Players Invited

Players who joined the first closed beta test will automatically gain access to this new testing period, ensuring returning participants can immediately jump back into the game. For newcomers, registration is available now through the game’s Steam page. Successful applicants will receive notifications on October 1 regarding their participation.

Updates and Gameplay Improvements

The second beta test will feature several refinements based on community feedback. Square Enix and Tactic Studios have confirmed that changes will include adjustments to game balance, tweaks to certain design elements, and the introduction of brand-new features. These updates aim to make KILLER INN a more polished and engaging experience, while also allowing the developers to further test server stability and overall player experience ahead of launch.

Hands-On Preview at Tokyo Game Show 2025

Fans attending Tokyo Game Show 2025, which takes place from September 25 to 28 at the Makuhari Messe convention center in Chiba, Japan, will get an early look at the second closed beta. The game will be playable at the Square Enix booth, giving visitors a chance to try out the latest build before the beta officially begins.

In addition, Square Enix has announced that attendees who play the game on-site will receive an invitation code granting access to the public beta when it launches, making TGS 2025 one of the first major opportunities for wider player participation.

Release Plans for KILLER INN

KILLER INN is currently in development for PC and will be released exclusively via Steam. While no official release date has been set, the ongoing beta tests and show floor previews indicate that the project is moving steadily toward launch.

With Square Enix backing the title and Tactic Studios shaping its design, KILLER INN is positioning itself as a fresh entry in the multiplayer action genre, combining elements of social deduction, tension, and fast-paced combat. The upcoming beta test will be a key step in refining its gameplay before the full release.

To get more updates on KILLER INN, you can visit their official X account.