A solo developer has created a 3D multiplayer mobile game in the ".io" genre, which involves an eat-and-grow style of gameplay. This game, developed using Unity and powered by Photon Fusion for real-time competitive multiplayer capabilities, has been in development for approximately 18 months with AI assistance. The offering includes full source code, original art and audio assets, a live listing on the Play Store, and an existing user base. Infrastructure details include a Firebase-backed project for backend solutions such as authentication and analytics, and a Docker-deployed server hosted via AWS. It's notable that the Android version is live and uses dedicated servers, while the iOS version is complete but pending App Store review. The game features a server-authoritative economy and subscription systems, integrated billing solutions for both major app stores, and robust anti-cheat mechanisms. During its lifecycle, two user-acquisition campaigns via Google Ads were executed, proving the capacity to scale installations effectively, though retention and monetization strategies remain areas for potential development. The game is up for sale because the creator, who manages it alongside a full-time job, lacks the resources to drive the ongoing user growth and content updates required. Opportunities for the buyer include refining user onboarding and control mechanics, enhancing monetization, and capitalizing upon proven advertising strategies. Challenges include resolving the iOS store review and managing the transfer of developer accounts. Potential buyers are encouraged to reach out for further details and will be granted access to comprehensive documentation upon signing a non-disclosure agreement.