OpenBOR is a royalty free sprite based side scrolling gaming engine. From humble beginnings in 2004, it has since grown into the most versatile, easy to use, and powerful engine of its type you will find anywhere. OpenBOR is optimized for side scrolling beat em’ up style games (Double Dragon, Streets of Rage, Final Fight), but easily accommodates any sort of gameplay style and feature set you can imagine.
OpenBOR
In 2004, Senile Team released Beats of Rage, a free beat-'em-up for DOS inspired by SEGA's Streets of Rage series and using sprites from SNK Playmore's King of Fighters series. The game spread only by word of mouth, but it nonetheless amassed popularity very quickly. Senile Team soon released an edit pack allowing anyone interested to create a module for the BOR engine.
In 2005, Kirby2000 asked Senile Team to open the source code to BOR. They agreed, and OpenBOR was born. Development on the engine was continued by the community, and still is to this day.