Lichess - The complete chess experience, play and compete in tournaments with friends others around the world.
Treasure Hunt - A scavenger hunt app for kids, powered by machine learning
Chess.com - Play chess on Chess.
Gift Hunt for WordPress - Online treasure hunt on your WordPress site
Fritz - Fritz is the world’s most popular chess program, developed by ChessBase, “the world's leading...
PlayTours - Create robust and affordable team-building games such as scavenger hunts, team races, gamified events, and self-guided tours. Get an Unlimited free trial.