Inside System's Touhou fangames

Inside System's Touhou fangames; while not officially a part of the series - are very important to the series. The Legend of Dark Witch took lots of elements from these games. They are still available to purchase today, and you can buy them here at Inside System's DLSite.

Games
There are 10 games released by Inside System.

The Legend of Dark Witch series
The Legend of Dark Witch took a lot of elements from these games. For example, the Enhancement Gauge was taken directly into the Dark Witch series, and that became a major element in the games going forward. Some attacks from bosses were also put into Dark Witch. A lot of concepts also became games. like the last game released was the inspiration for Brave Dungeon.