OpenTyrian is a port of the DOS shoot-em-up Tyrian. Jason Emery generously gave the OpenTyrian developers a copy of the Tyrian 2.1 source code, which has since been ported from Turbo Pascal to C. The port uses SDL, making it easily cross-platform.

* The Classic port is nearly feature-complete and will always remain similar to the original game.
* The Enhanced port is a work in progress and may be missing any number of features as they are reworked