Fan gameA fan game is a video game that is created by fans of a certain topic or IP. They are usually based on one, or in some cases several, video game entries or franchises. Many fan games attempt to clone or remake the original game's design, gameplay, and characters, but it is equally common for fans to develop a unique game using another as a template. Though the quality of fan games has always varied, recent advances in computer technology and in available tools, e.g. through open source software, have made creating high-quality games easier.
Doujin softis software created by Japanese hobbyists or hobbyist groups (referred to as "circles"), more for fun than for profit. The term includes digital doujin games, which are essentially the Japanese equivalent of independent video games or fangames (the term "doujin game" also includes things like doujin-made board games and card games). Doujin soft is considered part of doujin katsudou, for which it accounts for 5% of all doujin works altogether (as of 2015). Doujin soft began with microcomputers in Japan, and spread to platforms such as the MSX and X68000.
Fighting gameA fighting game is a genre of video game that involves combat between two or more characters. Fighting game combat often features mechanics such as blocking, grappling, counter-attacking, and chaining attacks together into "combos". Characters generally engage in battle using hand-to-hand combat—often some form of martial arts. The fighting game genre is related to, but distinct from, the beat 'em up genre, which pits large numbers of computer-controlled enemies against one or more player characters.
