The current version of KISS Platform supports the C, C++, and Java languages and the KIPR Link robot controller.
Download and extract the .zip file. Copy the KISS Platform 4.0.5 folder to your Applications folder. KISS IDE 4 is located in the folder label KISS. The simulator is in the folder labeled ks2.
The KISS Platform installation will only work on a 64 bit processor, 32 bit processors are not supported. To find out more to see if you are running a 64 bit processor, visit Apple's support page: http://support.apple.com/kb/ht3696
Mac OS X users will need to install the latest Xcode and Command Line Tools for their version of OS X prior to installing KISS Platform. This may have come preinstalled on your Mac. If not, it is available from the OS X install disk or Apple as a free download (registration required).
Access is limited to Mac Developers, but one can join at no cost by filling out the form at https://developer.apple.com/programs/register/.
OSX 10.8 (Mountain Lion) Users Please Read
Mac OS X Mountain Lion defaults to preventing applications from unidentified developers or sources from being launched. You’ll discover the message in OS X 10.8 when you try to launch a Mac app that didn’t come from a verified source or from the Mac App Store. You will get an alert similar to this "KISS can’t be opened because it is from an unidentified developer”.
This security feature is called GateKeeper and here is a link from Apple Support on how to fix the situation so you can run unverified apps on 10.8 OSX.