SQLDoom Runs Full Doom Inside SQL

SQLDoom is a brilliant database stress test and a surprisingly sharp demonstration of data-native simulation. It does not make SQL a sensible game-engine replacement, but it shows how transactional state, deterministic updates, and access control can simplify multiplayer systems.

• –Its renderer uses BSP traversal, window functions, and packed ordering keys across roughly 1,300 lines of SQL.
• –About 5,900 lines of SQL implement the game logic while the client remains deliberately minimal.
• –Transactional game ticks provide consistent multiplayer snapshots and prevent partially applied state changes.
• –The project is CedarDB-specific because it uses CedarScript, though the authors say much of it could be ported to PL/pgSQL.
• –Running it requires CedarDB, Python, pygame, and a legally obtained Doom IWAD, making it more compelling as an engineering experiment than a practical game platform.