jMAVSim

Relies on Java3D, which has a history of discontinuation and revival, leading to potential compatibility problems on different operating systems, as highlighted in the troubleshooting section with Mac OS errors.

Critical settings like serial port names are hardcoded in Simulator.java, requiring manual edits for different setups, which can be cumbersome and error-prone for frequent changes.

Primarily optimized for multirotors; simulating fixed-wing aircraft demands significant additional aerodynamics knowledge and customization, as admitted in the development notes, making it less versatile out-of-the-box.

Setup involves ant builds, submodule initialization, and specific command-line options, which can be less straightforward compared to modern simulators with simpler installers or package management.