Tombstone city is a game developped in 1981 by Texas Instrusment for the TI99/A4.
My very good friend Buzz has developped his own version of this game for Linux, Windows and the Nintendo DS. Few days ago he has ported his game from Allegro to SDL.
See http://buzz.computer.free.fr/ for details
I've done several small changes to fit the dingoo screen size and keys.
Sources are included, and this package is under the GNU public licence v2, read COPYING.txt file for more information about it.