It is alpha/pre alpha at the moment... It's basically a gallery showcasing the remaster, with some new features thrown in like the orgies. To compare this to finished/ almost finished games like SA and FOBS is ridiculous.Because the progression comes from capturing the monster girls. Honestly surprised you wouldn't know that.
Honestly the november build is a disappointment and it is a real shame. Zell had great game design decisions with both FoBS and Succubus but now with this remake we have lag issues, lack of optimisation but also bad game feel. The dash is extremely klanky to use due to stopping at the end, teleporters don't work, ladder doesn't work, and the entire system of weapons and skills make the game extremely alpha to even pre-alpha rather than a demo or beta build. It is a downgrade in every aspect.
It is extremely disappointing. Zell would need to adjust a lot of things to make this a passable build compared to the previous stable versions.
Some teleporters and ladders obviously don't work yet, he's only just started working on it in about the last 6 months.
It doesn't need saves because there is no progression yet and capturing mechanics are still janky as he's explained in update notes before.
Zell's forte is character design and animation and not programming, FOBS he does both unlike the other games he's worked on like SA and the horror game where he just did the animations. So it may take him a while.