OpenRPG 1.7.x and The latest development version of MapTool are required to play. GURPS Die Roller Character Sheet for OpenRPG. OpenRPG Dieroller guide for the GURPS dieroller. Export sheet for GCA Updated Die Roller for OpenRPG (updated by Emily). TODO Someone needs to check those links, and maybe write some installation/use instructions here. Including a FAQ for common problems like using these tools with Vista.