The ~500kB NBSDGames 6 managed to be published ahead of GTA 6

NBSDGames version 6, a ~500KB open-source game collection, was released in April 2024 ahead of GTA 6, featuring improved AI with adaptive difficulty, new games like Scissor and Treasure, and enhanced gameplay across existing titles. The developer humorously highlighted the release's advantages over major commercial games, including better portability, efficiency, and support for legacy systems like Plan9 and MS-DOS.