This PDF includes some additional optional Mats. Mini Player Mat extension adds a place to store tokens, full ship stats, & Science trading info. Ersatz Relic Mat is used with that variant to keep track of which are available for purchase and to keep the main board uncluttered. The Deed Extension is used when players have more then 10 deeds and is designed to sit above the Player Mat. For best results print on laserprinter & laminate. It is designed to work with the Avalon Hill edition.