Open Source Objective-C 2.0 Libraries

Orx is a portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. As orx is data driven, it allows users to create games with a small number of lines of code and reduces drastically the development time.

A date-time framework for Cocoa based on the Joda-Time Java library.

The Objective-C Game Library(ObjCGL) is a set of Objective-C classes that use SDL to provide a way for programmers to implement a basic set of components into their games quickly and easily.

A growing set of complete classes that ease iOS development. S4iOSLibraries provide an application framework for iOS development.

scl is Objective C library for macOS, iOS and GNUstep with custom set of ObjC classes and extentions of standard CF, Cocoa and Cocoa Toch classes, such as NSString

cocoa.php is a set of PHP classes which emulate some of the features of Objective-C's Cocoa (or GNUStep) framework. The project is in its VERY early stages at the moment. My initial motivation was to provide enough functionality to read and write property list files - the aim being to make it very trivial to exchange data between a real Cocoa application and a web-based API. Code in the project was written from scratch and the only the names of the classes and methods are the same as the real Cocoa framework. Feel free to use/modify/distribute as you wish, but leave this notice intact. It would be cool to know how people are putting it to use and any improvements contributed back to the project would be appreciated. I have absolutely no intention to step on anyone toes. If anyone has a legal issue with this project, please contact me and I'll do whatever is necessary to rectify the situation.

iOS Ports is a Collection of F/OSS libraries which have been ported to the iPhoneOS/iOS platform.

iSDGE is meant to be a free next generation 3D game engine for mobile devices supporting OpenGL ES 2.0. It is very easy to use, extremely flexible and fast. iSDGE is mostly written in C++ and currently comes with an Objective-C binding for iOS.