Tower and Sword of Succubus is an erotic double feature game developed by pixelteishoku and LibraHeart. The game features two demon succubi from different timelines, retro graphics, classic action RPG gameplay, and of course, a lot of animated pixel art hentai content. In this game, players must play as a succubus who has lost her power and must ascend a 77-story tower to get it back. The game features six boss characters that players must defeat to reach the top floor of the tower.

One of the signature abilities of a succubus is Charming Magic, which players can use to charm their opponents and suck away their life force. Additionally, players can discover strategy tips and erotic short stories by finding the left-behind books scattered around the tower. The game also features a succubus wielding a holy sword who is on an adventure to defeat the king of demons. As players solve puzzles, encounter monsters, and gain magic and items, they can explore every nook and cranny of the map. Players can also have sex with villagers, be a "lady of the night," fuck monsters, and satisfy themselves with hand-drawn erotic pixel art animations.