House of Cards is a Western Canadian retailer specializing in trading cards, tabletop games, and accessories. Its online store offers an extensive selection of Magic: The Gathering and Pokémon products, including individual cards, booster packs and boxes, preconstructed decks, graded cards, and collectibles. The shop highlights high-end, vintage, and competitive cards, and invites customers to sell their collections through its buylist.

Beyond its core games, House of Cards carries Disney Lorcana, One Piece Card Game, Star Wars: Unlimited, Gundam Card Game, and Riftbound products, alongside board games and supplies for Dungeons & Dragons and Warhammer. Customers can also browse card sleeves, deck boxes, binders, portfolios, playmats, paints, and other gaming accessories, as well as branded apparel. The store provides a deckbuilder and promotes events, serving collectors and players looking for cards, hobby games, and equipment in one place. Its catalog includes both current releases and sought-after singles, with products available across a range of formats and collecting interests.