As such, it is a puzzle platformer game which features elements of a sandbox game. The JavaScript engines execute WebAssembly code in the same sandbox as regular JavaScript code. In game design, a sandbox is a metaphor for playing in a literal sandbox. WebAssembly code runs in the same sandbox as regular JavaScript code. The game features a mixture of linear levels and sandbox environments. Atari announced a game on The Sandbox Plattform. The game is set up in a sandbox fashion. It started as "one big violent sandbox" and progressed to a playable demo. Similar to the Django web framework, it handles templates in a sandbox. Conker returned in a new episodic campaign for the sandbox game "Project Spark". The story network was also one of the earliest examples of a sandbox game design. It was just one guy's great big sandbox, where he kept building stuff. Google Chrome similarly confines its page renderers to their own "sandbox". The "Saints Row" series is part of a genre known as sandbox games. There are three different modes in the game, namely Sandbox, Challenge, and Career.