The LTE Game Engine is a full-featured game engine that allows PSP users to program games or applications without having to fight any of the pspsdk calls. You don't even need to know how the PSP system works to create games with LTE Game Engine. The engine manages input/output, 2d and 3d hardware accelerated graphics and audio.

Here are a few short how-tos from the readme file as well as the changelog for version 2.2:

Requirements
To use the LTE Game Engine you must have Toolchains installed, if you are running under win32 you can find the downloadable compiled version here:

http://xorloser.com/PS2DevWin32.zip

PSPGL is included in this archive, you need to use this version of PSPGL because I've fixed some bugs in it.

How to start
Just run the Makefile contained in the same directory of this file, and include files and libraries will be installed in your computer.

You can find documented examples in this archive that will explain you the basic of this engine. For any question please go to the LTE Game Engine forum at:

http://www.ltestudios.com/forum

To run examples you have to extract the media.zip in your ms0:/ folder, just compile the example doing 'make' or 'make kxploit'.

Changelog:

* Fixed IReadFile and IWriteFile to work with relative paths
* Added the method IVideoDriver::draw2DStretchedImage to draw stretched images.
* Added the method IAudioSound::setAutoStop(ms) to automatically stop the sound after
* ms milliseconds
* Important fixes in the audio driver
* Added getAbsoluteClippingRect to get the clipping rect in gui elements
* Added custom bones for Direct X meshes
* Added GUI progressbar

Kudos to Soulkiller for the heads up.