Adds a classic game-style save state. When you set your spawn (at a bed or respawn anchor), a save is created, and when you die, instead of respawning it reloads that save as if time rewound.
⚠️ Warning: The mod deletes and manipulates files. I do not recommend using this on a world you care about, in case something goes wrong and your world is deleted or corrupted.
Support
Only works in singleplayer because I couldn't think of a good way to handle save states for multiple players. If you want a savepoint-style mod that works in multiplayer, see Save Point (of course, the functionality is not the same)
It should work with mods that add other ways to set your spawn, however it may only work the first time depending on how the mod is written, whereas vanilla beds and respawn anchors can be used multiple times.
Inspired by Undertale (I know there are plenty of games with a save system, but I think Undertale's is particularly notable)
