I thought it was a remake? Did he not update the engine?
He remade it in an
older engine.
RPGM XP came out in 2005
RPGM VX came out in 2007
RPGM VX Ace came out in 2012 (outside of japan).
The original game, Alone, was made in VX (2007) version of the engine.
The author was growing increasingly frustrated with it over time, as they have cut a lot of features that were available in XP (2005).
He started trying to familiarize himself with VX Ace (2012) with plans on rebooting into it but found that one endlessly frustrating as well. Again many cut features, improvements but also breaking stuff.
RPGM is notorious for being extremely impractical to port between editions. Eventually in 2013 he had enough, posted a long rant about VX and VX Ace. Said he is remaking the game in RPGM XP. the new game will be renamed from Alone to AloneXP (the XP is from the game engine name) to distinguish it from the old game. So he remade the game into an
older engine.
To be fair XP, VX, and VX Ace were all trash. VX Ace is just a
mostly fixed version of VX. where it took them 5 years to sort out most of the problems in VX, but even then not all.
The notoriety of being impractical to port between editions is one of the reasons people keep on calling it a trash engine, it is not just the 8bit graphics or the grindy JRPG style combat.
For example RPGM keeps on switching which language user scripts are written in. So if you want to port a game to a newer version of RPGM you need to learn a different programming language and then manually rewrite all user created scripts into the new language. And zone tiles have to be redone manually, again not something that can just be imported from one game to the next.
This is why less than 5% of RPGM games on F95 use the latest version of the engine, RPGM MZ (2020), which is actually somewhat decent. There is also the MV version from 2015. which was still meh but the first version of RPGM to ever have a proper resolution.
Also the story thing was meant to be in relation to writing a book but I forgot since I posted it yesterday. The main part of the porn game is the porn. It is the bait on the hook to get you to play the game. Since substituting it for stolen assets was my issue amongst other things I mentioned.
Shrug. I am mostly saying that it is not as bad as you originally said since this game predates a lot of those alternatives you mentioned. I am not saying that it is good that the game was made with stolen art. Certainly not if you judge it compared to other games available today