Universe is an old VAX console game, rescued from DECUS archives from the 1980's, converted to C and able to be run under Linux. It is vaguely similar to the old STTR1 and TREK73 games of that era.
The goal of this project is to create a fast generator of a volumetric fire animation. The generator uses a short precomputed sequence to produce an endless animation. Packages real-time-fire2.0 and higher contain additionally a heat haze.