https://johnsterspacegames.itch.io/baldis-fun-new-school-plus-ultimate
If you get bored, try mod packs you can find them in the comment section of the game
TUTORIAL FOR MOD PACKS BELOW
1st step: Download a mod pack that you want
2nd step: have the mod pack open at all times untill the tut ends
3rd step: open up the game that has the same name in the title
4th step: set up everything and go the floor customizer
5th step: press share floor it will open up the file that should have maps
6th step: put the mod pack inside the folder
Now you are done, close all files