LevelUp

LevelUp is a community-driven development collective known for delivering one of the most comprehensive freeware airliner packages in flight simulation: the 737NG Series for X-Plane 11 and 12. Serving as the evolution of the popular 737 Ultimate project, LevelUp brings the entire Boeing Next Generation family under one roof.

Rather than just simulating a single airframe, LevelUp includes all five key variants—the compact -600, the classic -700, the ubiquitous -800, and the extended -900 and -900ER. Under the hood, LevelUp leverages the proven, study-level systems depth of ZiboMod, ensuring authentic flight management computer (FMC) logic, autopilot modes, and system responses.

On the visual and acoustic side, LevelUp features completely overhauled 3D models with 8K exterior and cabin textures, modular visual architecture to keep install sizes compact, customizable winglet configurations (split scimitar, blended, or bare tips), and an intuitive tablet interface (CornUI). Powered by realistic CFM56 engine sounds built in FMOD 2.0, LevelUp delivers payware-grade airliner simulation at zero cost to the community.