hello! the tutorial is in the instructions so... step 1 is to go to scratch x step 2 click see all extentions step 3 scroll down untill you see scratch 3D, click it now before we go on, i have a example project, to open it just download it via http://www.mediafire.com/file/7wql84hd9wubkxu/3d+among+us.sbx/file and go back to scratch x, click file and then click load project and then go to the location of the file you just downloaded and click it, and you see the example code! step 4 put in this code when *greenflagemoji.exe* clicked new 3D world [grass] add camara controls [first person] now click the flag, you will spawn in a 3D world, use the up key to move forward and a to look left and d to look right now, how to make a game (just text and walls and cubes etc...) step 1 make a variable (any scratcher is able to make a 3d game using this and the code isnt even long at all) step 2 place the variable block into the [greenflagemoji.exe] code and put the block new shape [cube] size [x size (left right)] [y size (up down)] [z size (forward backward)] location [x] [y] [z] into the variable and it will spawn the cube in that you wanted, repeat this to make more things, and same can be done with text.
idk who the credits go to...