For a speedrunner, a save file is something entirely different. It is a tool. It is a calculated variable. In some cases, it is a weapon.

For many games, a save file is simply a JSON or binary file that tracks specific flags—XP, unlocked levels, or inventory items. Speedrunners often use specific save states to:

This is where the taxonomy of speedrunning gets specific.

“It gets super tough to stay together near the end there... you've really got to step up your game or make them fail.” thevideogamebacklog.com · 11 years ago

: Runners create a "network of save files" to practice specific segments or "save states" to master difficult late-game areas without replaying the entire title.