RetroThek is a German platform for people interested in retro culture, vintage objects, collectibles and the stories behind them. Its magazine explains topics such as the distinction between authentic vintage items and modern retro-inspired products, while its blog covers nostalgia, design, gaming, antiques and related events. Visitors can explore listings and guides to flea markets, exhibitions, museums, cultural places and collectible objects, as well as a directory of traditional businesses.

RetroThek also offers practical services for traders, collectors and sellers. These include buying, selling, brokerage and rental services, alongside an online shop and a marketplace. People with old consoles, games or other retro items can submit details through an acquisition form to receive an offer. For dealers, the RetroThek app supports photographing items, recording and managing stock, comparing prices, creating QR codes and organizing products, with marketing features to help operate an online shop. Through its editorial content, listings and business tools, RetroThek brings together enthusiasts and commerce around objects and experiences inspired by earlier decades.