- Tell me when this page is updated Simutronics is a registered trademark and service mark of Simutronics Corporation. all rights reserved. The GemStone III game is copyright 1987-2001 Simutronics Corp. All rights reserved. GemStone is a registered trademark of Simutronics Corp. All rights reserved. Download AOL Instant Messenger Rangers of Elanthia ...lady_jocelin.tripod.com