Osta Killer Inn PC

An Action Shooter Where Deception Is Key to Survival

KILLER INN is an online competitive action game where players are split into a large team of Lambs and a small team of Wolves. The identities of the Wolves are concealed. Defeat all members of the opposing team to win! With no way to know who the killers are, this is an asymmetrical PvP action shooter built on trust and deception.

The killer (a Wolf) is wearing blue... Who looks suspicious? Once you identify a Wolf, team up with your fellow Lambs and hunt them down!

Solve the mystery through force!

Guns, axes, knives, bombs... Use whatever weapons you have at your disposal to quietly eliminate the Lambs! Don't forget to dispose of any evidence left at the scene.Even if your identity as a Wolf is exposed, worry not! Counterattack and slaughter the Lambs to claim victory!

There are no discussions or vote-based eliminations like in traditional Werewolf games. Preparation, killings, and battles between Wolves and Lambs all unfold in real time and at a fast pace. In the end, everything is decided by combat. That is the essence of KILLER INN, a fast-paced mystery resolved through force.

Unique Characters, Loads of Weapons and Upgrades, Endless Strategies

Mix different weapons, armor, tools, consumables, and character abilities to fit your style. Find the build that makes you untouchable—or the one that makes you invisible.

Each character brings two unique abilities that change how the whole round plays out. Don't just pick a character. Build around them. Know what you can do that nobody else can.

A bad guess can get you killed. In KILLER INN, deciding whether someone is a Wolf or not is always a life-or-death call.

The game makes you a good detective—Clues are automatically organized, and confirmed targets get marked for you. Your job is to pull the trigger on the right person before they pull it on you.

Winning is simple: eliminate the opposing team.
It's a life-or-death battle between the wolves and lambs. Who will reign supreme? The lambs, with numbers on their side, or the wolves, whose identities are unknown and can hide among the flock? However, the cleverest of lambs have another path to victory: escape.
Can you flee the castle? All you must do is secure keys to the harbor gate and raise the anchors. Easy, right? But can you truly trust everyone working alongside you?

An array of items is hidden in the castle:
-Guns and melee weapons to give yourself a fighting chance
-Traps and poisons are perfect for murder
-Armor and gas masks to protect oneself

There's no one sure-fire strategy. Your path to victory is shaped by your playstyle.

Sharpen your senses and feel your surroundings come alive. Focus Mode lets you detect a killer's footprints, bullet casings, and glass fragments, or even sounds through walls.

Footsteps. Breathing. Someone lying through their teeth three feet away. Hear everything. Use everything.

Want to talk in private? Step into a room and close the door. KILLER INN uses 3D audio voice chat that takes into account players' locations, distance between them, and the space around them.

Not a fan of voice chat? You can also communicate using a wide range of emotes and stamps.

Play Solo, or in a Duo!

Whether you roll solo or duo, the ultimate game is waiting for you.

In Custom Lobbies, you can play with as many friends as you like (up to the limit of the lobby size)!

Note added on June 19, 2026: The description has been modified as the party size limit has been changed from four players to two players on April 10, 2026.

Included in the Free Trial

• Unlimited Multiplayer: Play Casual Matches and Custom Lobbies with no time or match-count limits.

• Keep the Progress: All XP earned during the trial will carry over upon upgrading to the Full Version.

Trial Limitations

• Character Roster: Limited to three starters: Author, Gamer, and Detective. Additional characters can be unlocked upon upgrading to the Full Version.

• Reward Systems: Access to the Battle Pass and other seasonal rewards is restricted to the Full Version.

*This game is online-only, and gameplay may become unavailable if the game service is terminated in the future.