Having played and enjoyed this game's sequel, Sword of Succubus, I was very excited to give this game a try. Although the gameplay is similar from a mechanical perspective, this game's "overworld" experience is sorely lacking in comparison. This game's "overworld" is simply a menu that allows the selection of 77 different tower floors. Although there is a nice visual showing your height in the tower, this screen is ultimately a menu. When not in this menu, you will be on one of the actual tower floors.
The gameplay within a level is very similar to the dungeon sections of the sequel. There are corridors containing monsters that can be killed or seduced, and a large visual of the succubus herself takes up a large portion of the right side of the screen. This animated panel, a feature of most of the recent Libra Heart games, is probably my favorite feature of the game. The animation here shows our heroine when she attacks, takes damage, and of course, seduces enemies. The content here is good enough to be downright distracting at times (in the best of ways, of course). The animation when she kicks, in particular, is enjoyable enough that I was almost disappointed when she got a sword and it was replaced with a (nice but not "S tier") animation of her slashing. I also feel that this panel makes the character charming and relatable even during mundane gameplay.
Ultimately, the slick presentation, solid controls, and controller support (yay!) that you'd expect from a Libra Heart title are here, but there are some issues with gameplay that keep this from being truly excellent. For one, the gameplay within the levels is only challenging a handful of times (most enemies can be seduced to regain health so there is little risk of dying). The main content for me was looking for the variety of secrets and powerups hidden in the levels. The secrets, unfortunately, are often quite obtuse, typically involving either breakable walls, walls you can walk through, or pits/spikes you can walk on. Although there are hints for some of these, it can be hard to keep track of which hints you have pursued- there is a rudimentary system for this tracking, but doesn't help with all of them.
I was still able to 100% the game in around 4 hours without too much effort. The bosses were a little tricky, but i found that they could be killed fairly easily by spamming the melee attack.
Ultimately, this was a very enjoyable game, although not quite as awesome as the sequel. Still absolutely worth a look if you're a fan of non-con, pixel art, or the other Succubus games.