Traders Guild is an online retailer specializing in secondhand game books, tabletop role-playing games (TRPGs), and related gaming publications. Its catalog spans classic game books and fantasy titles, alongside TRPG materials for systems and settings such as Dungeons & Dragons, Call of Cthulhu, Warhammer, Tunnels & Trolls, Wizardry, and other fantasy, science-fiction, cyberpunk, modern, and general-purpose games. Shoppers can also find card and board games, strategy-game magazines, dice and tabletop accessories, guidebooks, setting materials, comics, novels, retro-game items, and metal miniatures.

The store provides product descriptions and photographs to help customers assess the condition of used items before ordering, including notes about wear, missing packaging, or damaged parts. Customers can search by product name or browse organized categories. Traders Guild also buys game books, TRPG and strategy-game materials, and other tabletop gaming publications.

Accepted payment options include bank transfer, postal transfer, cash on delivery, convenience-store payment, and major credit cards, with 3D Secure 2. 0 authentication for card transactions. Orders are accepted year-round, although shipping may pause on weekends and holidays