The ApeSDK is a series of simulations that work together. It is primarily written in C and can be built with Mac, Window, Linux and iOS GUIs.

The ApeSDK was started in 1996. Since then it has been under continuous open source development.

• From 2003-2009, it was used by Apple.
• From 2005-2011, it was used by Intel.

The ApeSDK features a number of simulation components:

• a detailed landscape simulation,
• a rich biological simulation,
• a complex weather simulation, and,
• scaling from a landscape to a planetary simulation (Simulated Earth).

Three levels of social simulation including:

• a reactive simulation,
• a language simulation representing external and internal conversations with a number of actors, and,
• a social factor simulation.

The SDK also features a full-stack scripting language and a series of low-level features bringing it up-to-date with every expected feature of contemporary simulation:

• JSON IO data core,
• multi-platform graphics for Mac, iOS, Windows and Linux,
• a web server for remote viewing and interaction, and,
• frequency and time based audio IO.

The ApeSDK is currently used in:

• Simulated Ape - a detailed simulation app for Mac and Windows (formerly known as Nervana and Noble Ape),

• ApeSim - an exploratory iOS app based on a UI-stripped-down version of Simulated Ape,

• Simulated Urban - a detailed urban environment simulation with the organic Ape agents interacting through a cityscape, (included with Simulated Ape), and,

• Simulated Planet - a detailed planet simulation (included with Simulated Ape).