Noita: How to Save Manually 2022

Save and quit. Go to C:\Users\Username\AppData\LocalLow\Nolla_Games_Noita and make a copy of save00 folder. This is your save! Now every time you want to play from that point just paste it back in the folder.

Save & Quit

Press Win+R and type %appdata%

From there go back one folder(from roaming to appdata)

Next click on LocalLow, then on Nolla_Games_Noita

Bam! you made it. Now just make a copy of save00 folder somewhere on your pc. If you die just delete the new folder in there and put your saved one in its place

C:\Users\USERNAME\AppData\LocalLow\Nolla_Games_Noita
^alternatively put your pc username and paste it into the path bar

You can alternatively save separate elements from the save00 folder
For example, you can just paste player.xml on the new world save to get to play on the fresh world as an old character and possibly farm a lot of perks (WARNING: your coordinates will be the same as in the old world and you may get stuck).
player.xml and world_state.xml like to go together as world state keeps the orbs and some other stuff and player keeps most of the player stuff. However, if you just paste world_state some of the perks will remain. They will not show, but if you had infinite spells perk, the wands will have infinite spells. The same with no shuffle perk.

Overall better to keep everything bundled, though sometimes changing the world folder is helpful as it gets heavy fast.