This game along with Beat Blades Haruka(Yes, it was also based on a VN) had similar gameplay systems where you'd basically train the magical girls from their respective series by fucking them, usually with consensual sex, however there are more humiliating methods of training with them. You basically sent them around the city to defeat bad guys, I guess. Though they were pretty much text & cg games if you ignored that.
I don't remember in Escalayer's case, but both games had rape-on-loss upon defeat, both games have GOR in some form(Though in BBH's case, I think it was always the same scene)but I don't remember it so well.
However there's no actual translations for both games from what I know, you'll be depending on the translations on the wiki to find out how to do anything.
Both games are pretty large (Or at least, Beat Blades Haruka was around 3gb or so) So you'd more than likely have to pick it up through torrents.
You don't need to ask, yes they both have tentacles.