Sorry for the repeated question, then... I looked at the last few, but they were all about which website you download from. I should have looked back further.
RPGM is literally a third party. There's the developer and me (two parties) and RPGM. I could list multiple RPGM games that don't require downloading any additional software, or there's this graphic that explains how the RTP is an option that the developer chooses to package with their game or...
It turns out the RTP doesn't include the DLL, but if you seek out the DLL, it complains next that the RTP is missing.... then downloading the RTP doesn't fix it.
It looks like the newer version, "Slice of Venture: Origins" works, though. (Thanks @robertms )
No other RPGM game has needed outside DLL files. It's odd that yours needs me to download other packages to work.
I wonder if there's an option when packaging the game for export that includes the DLL information in the packaged software. (My first line felt too much like fightin words)
I've downloaded the patch, and the password on the OP doesn't work. Does anyone have the patch password? (Narrator isn't immediately responding over on the other site.... you know... because they probably have a life or some junk....)