"Where Are Your Keys?" is an open source, high-speed language game that uses sign language as a "bridge" to learn any spoken language. The sign language supposedly keeps you from thinking in your native language while allowing other players in the game to know what you are thinking.
The game, according to its creator Evan Gardner, is based partially on another language teaching technique called "Total Physical Response," where you talk about things that are actually around you. "Where Are Your Keys?" takes "Total Physical Response" to a "ridiculous end" where every word has a sign so you can "build a muscle memory of the word and act out what we are trying to say."
Has anyone tried "Where Are Your Keys?" to learn a language? I'd love to hear what you think.