serves as a significant stability and content update, refining the experience introduced in the major 1.20 update. It focuses on squashing persistent bugs, optimizing performance for a wider range of systems, and polishing the massive roster of vehicles.
Released as a comprehensive update for the existing Platinum mod, version 1.21 is designed to refine the experience and fix issues found in earlier iterations like 1.12. It is not a standalone game but an incremental patch that requires the base Platinum mod files to be installed first. Key Features and Changes in Update 1.21 test drive unlimited platinum patch update 121