Amusement Software

Amusement Software was a Tokyo, Japan-based software and video game company known for creating computer software for the first-generation series of home computers including the Apple II, PC-98, and Commodore 64. They later expanded into Atari and Nintendo consoles, notably for creating the first five of the most popular Touhou Project series of video games.

History
Amusement software was founded by Junya Outa in 1981.