Queen's Blade is called "Visual Book for Duel." It is based on the Lost Worlds Combat Picture Books, the classic game book for duel.
In this game, each player uses one beautiful fighter (for one book) to duel with another player. The combination of each player's choice of offenses and defenses then leads to the character being in a state of, for example, falling down, being wounded, having armor broken, etc (each state has an artistic page in the character book), and the repetition of these decides a winner, by accumulated wounds.
According to HobbyJapan, Queen's Blade has compatibility with Lost Worlds Books and can have a duel with them. Data of Queen's Blade is made by Flying Buffalo Inc. which has license of the Lost Worlds.
- Size of books is large enough to view pictures well.
- Originally, the Lost Worlds has　books of female characters with bikini armor and photos of women with chain-bikini, etc.
- You can see photos of figures of each character here.