Haaf's Game Engine

Haaf's Game Engine(HGE for short) is a Open Source 2D Game Engine, although by certain forum users described as a rendering engine, however it can be easily expanded with physics, network libraries and more if those are needed for your games.

This engine is published under the The zlib/libpng license and is free to use even in commercial applications, however it makes use of the BASS audio library for sound, which is free for non-commercial but for commercial use you will need to purchase BASS or use a different audio library(BASS can be simply disabled).

HGE has been around for quite some time and has been found to be very stable.

Key features:

• Strict concentration on subject "2D games"
  Task oriented design. Nothing redundant and lots of higher level features.
• Simple interface and extreme easiness
  You don't have to know anything about system programming and don't need any additional libraries. Classes and headers that make sense. Very easy to set up and use.
• Technical advanceness
  HGE is built upon modern Direct3D API what allows lots of special effects and great performance. Alpha blending, color tinting, geometry transformations etc. without performance hit at all!
• Complete and clear documentation
  All the features thoroughly grouped and described, lots of general game development hints provided.
• HGE just feels right!
  HGE is highly consistent. Every minor feature is carefully planned and interconnected with others.

For more features click here.

A linux port has been made that is available here: Icculus.org

Warning:
The HGE Supporters group are not the original creators of HGE, however since there isn't much activity from the original creators, the HGE Supporters group will be upkeeping this engine profile instead, all credits goes to the original HGE Development team for this great engine.