Radical Dreamers: Nusumenai Hōseki (ラジカル・ドリーマーズ -盗めない宝石- Rajikaru Dorīmāzu -Nusumenai Hōseki-?, literally Radical Dreamers -The Jewel That Cannot Be Stolen-) is a Japanese video game produced by Squaresoft in 1996 for the Satellaview add-on for the Super Nintendo Entertainment System. It is a text-based adventure game in which the player takes the role of Serge, a young adventurer accompanied by Kid, a teen-aged thief, and Gil, a mysterious masked magician.