Lost Chapters is a free-to-play digital collectible card game about American history, created by Roberts Bros Games, a brand of DevBerri Inc. Players choose a historical Leader, build a 40-card deck, and battle artificial intelligence opponents or other players. Leaders include Nikola Tesla, Martin Luther King Jr., Amelia Earhart, Blackbeard, George Washington, and Neil Armstrong, each with distinctive abilities and signature cards. The collection features real people, places, and events, alongside a few tall-tale legends, framed by an imaginative story about a crystal that cracks time.

The game offers several ways to play: AI duels at different difficulty levels, ranked matches, private friend rooms, free-for-all games for three to five players, and Draft, where players assemble a new deck one choice at a time. Newcomers can learn through the guided First Chapter campaign, while Chronicle provides a story mode. Lost Chapters runs in a web browser on phones, tablets, and computers, with no download required, and is designed for ages 13 and up.