4. Inspect the itch download page for the game and find the game id and the upload id.
This needs some further explanation.
Viewing post in Manually installing games in itch app
I wasn't attempting to answer anything. You mentioned something about a 'Step 4' with out explaining which 'Step 4' you were thinking of.
In any case I plan on altering the receipt.(json) File*, and alter it to match up with (UnnamedGame v16), that may be c***blocked due to the stupid Payment Provider Drama of '25. Apparently that would work but it would be like hammering out a copy of it.
Thankfully this is the Third Chapter of said Game, so I have versions 7, and 14** to compare my work.
*IIRC That comes along with a given Game in Game Dir/.itch
** Again IIRC