Rance VI -The Collapse of Zeth- (Rance VI -????-) is the sixth installment of the Rance Series, released in August 27th 2004 in Japan. A new uncensored version translated in english was also released via MangaGamer on the 23rd December 2016.

Despite the fact that 5D was released earlier, Rance VI is usually considered the beginning of the new Rance timeline set after Kichikuou Rance, due to the much bigger scale of the game along with the fact that it takes place in LP0004, leaving the year LP0003 where Kichikuou Rance would have taken place as "the missing year", since the canonical events of that year weren't adapted into games. It was also from this point that many details of the lore and the setting were better established and given further detail.

VI is a turn-based dungeon crawler RPG with a unique system that limits the amount of times a character can be deployed in battle per dungeon, forcing the player to strategically organize how to use the characters through each dungeon in order to get to the end with the most optimal party, since it features dozens of playable characters with a different skillset that work better for different circumstances.

It is often considered to be among the best of the series due to its well-written and developed plotline, vast array of characters, fun and addicting gameplay and unique setting.