The 'Length Warning for Capacity' is a utility program designed for Windows users of Bus Simulator 21. This free add-on provides two decals that inform users about the normal capacity limits within the game. The decals serve as a visual aid, enhancing the realism of bus operations by clearly indicating passenger limits, which is crucial for effective bus management and gameplay experience.

Installation is straightforward, with comprehensive instructions provided in the included Readme file. This ensures that users can easily integrate the decals into their game without any hassle. Overall, this utility enhances user interaction with Bus Simulator 21, making it a valuable addition for players looking to improve their simulation experience.