Murder Mystery Action Game KILLER INN Launches Closed Beta On Steam

Square Enix has officially opened the bloodstained doors of KILLER INN, a one-night-only murder mystery action game where 24 unsuspecting players are invited to check in, but not all will check out. The highly anticipated multiplayer title kicks off its Closed Beta Test on Saturday, July 26, 2025 at 8am AEST, with sign-ups now open via Steam.

Inside a shadowy, crumbling castle, players are divided into two teams: a ruthless minority of wolves and a clueless (but hopeful) majority of lambs. The wolves lurk in plain sight, biding their time, hiding their nature… and striking when least expected. Meanwhile, lambs must work together to uncover the truth, gathering evidence like hair, fingerprints, and scraps of clothing left behind at the crime scene. Sound familiar? Think Among Us meets Knives Out, but with more secrets, suspicion, and screaming.

With betrayal baked into every round, it’s a chaotic and theatrical experience where no one can be trusted, everyone is a suspect, and even your closest allies might just be out for your blood. If that doesn’t sound like a good time, you’re definitely the wolf.

KILLER INN is a brand-new IP, created through a chilling collaboration between TBS GAMES (the gaming arm of TBS Television) and Square Enix, merging deep entertainment storytelling with gripping gameplay. This game promises a high-stakes detective-vs-murderer showdown that feels like stepping straight into a mystery drama, complete with gorgeous gothic vibes and a killer twist at every turn.

The Closed Beta runs until Tuesday, July 29 at 7:59am AEST, and will focus on testing server stability, gameplay balance, and player feedback. Square Enix has also hinted at more beta tests in the future, so if you don’t make the cut this time, don’t fret, your time will come. (Maybe.)

🎮 To join the CBT and wishlist the game, head to the Steam page now.
📹 Want to study up before your inevitable demise? Watch the official “22 Things to Know Before You Visit KILLER INN” video for the full breakdown.

Will you blend in? Will you sniff out the truth? Or will you be the next body left behind?

There’s only one way to find out.
Check in to KILLER INN—where someone is always watching.