Vessl: Alien Impostor Mystery
Co-op Hidden Role Mystery
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Welcome to Vessl: The Ultimate Sci-Fi Social Deduction Game!
You and your crew are on a critical mission in deep space, but trust is a luxury you can no longer afford. An alien Parasite has infiltrated the ship, taking the form of a crewmate. You must work together to identify the threat, or deceive your friends and consume the vessel.
THE CREWMATES
Your goal is survival. Complete rapid-fire action puzzles—including Scramble, Math, and Sequence memory games—to stabilize the ship. If your crew is fast enough, you'll unlock critical rewards like the Deflector Shield to protect a friend, the Bionic Eye to scan a player’s true identity, or Data Clues that generate hints about the Parasite's appearance. Use the in-game chat to share intel, interrogate suspects, and cast your public vote to purge the traitor!
THE PARASITE
Your goal is total infection. Blend in during the day, fake your puzzle progress, and sow chaos in the chat. When the lights go out, use the secret "Hive Link" to coordinate with your fellow Parasites. Vote to assassinate crewmates in the dark, or trigger a bio-infection to force a crewmate into an ultimatum: join the Hive, or face immediate elimination.
KEY FEATURES
Multiplayer Lobbies: Play with 3 to 11 players. Host private games with a custom room code for your friends, or jump into public matchmaking to find a crew instantly.
Dynamic Roles: The number of Parasites scales automatically based on your lobby size for perfectly balanced matches.
Biometric Vault: Earn points by surviving missions and unlocking Classified Pods. Expand your roster with rare and VIP avatars to equip as your permanent callsign.
Smart Networking: Never lose a game to a bad connection. Vessl’s dynamic host migration keeps the ship flying even if the captain disconnects!
Built-In Moderation: Mute disruptive players and report toxic comms to keep the vessel safe for everyone.
Trust no one. Secure your biometrics. Survive the Hive.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
What's New in this Update:
• Timer Fixes: Resolved a UI glitch where the game countdown timer would occasionally freeze or display the incorrect time on newer devices (like the iPhone 16 Pro). Timers now accurately reflect the live server state.
• Referral System: Added a new manual referral code system to easily invite friends to your lobby.
• Minor bug fixes and performance enhancements.
The developer, Octag AI LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Octag AI LLC
- Size
- 66.1 MB
- Category
- Strategy
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - iPad
Requires iPadOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
Infrequent
Cartoon or Fantasy Violence
Horror/Fear Themes
Contains
Advertising
Messaging and Chat
User-Generated Content
- In-App Purchases
Yes
- Weekly Ad Removal $0.99
- Ad-Free Status $2.99
- Copyright
- © 2026 Octag Ai