Romancia (ロマンシア), identified as Dragon Slayer Jr., is an action-adventure game developed by Nihon Falcom in 1986 for the PC-8801, PC-9801, MSX, and X1 computers. A later Famicom version was developed by Compile and published by Tokyo Shoseki. An enhanced remake was released for Windows in 1999 by Unbalance. It is the third in the Dragon Slayer series, preceded by Xanadu and followed by Dragon Slayer IV. Romancia is a simpler and brightly colored game in comparison to the other Dragon Slayer titles, hence the name "Dragon Slayer Jr."

Movement is controlled with the arrow keys, and attacking is done with the action key. Unlike Xanadu, there are almost no statistics, and zero customization. The game consists largely of two screens with a few small sub-areas. The player has only thirty minutes to complete the game, further illustrating the light and accessible nature of the title versus the oppressive underground complexes of Xanadu. Despite this, the game is still rather unforgiving and the player will likely use trial-and-error or a walkthrough to solve some of the puzzles.