From publisher blurb:
It’s the eve of a war between two countries on a balkanized world and non-natives are trying desperately to get out. A noble family frantically contacts the PCs to rescue their pilots, who have been kidnapped by agents of the approaching army. The heroes track the enemy and their captives to an abandoned resort, but that’s the easy part — they must then negotiate unfamiliar, hostile territory in order to complete their mission, as the enemies have the home ground. Meanwhile, the warfare grows ever closer, threatening to put an end to friend and foe alike.
Escape From Thundervale is a short science fiction adventure using the Cepheus Engine (CE), Cepheus Deluxe (CD) and the Original Science Fiction Roleplaying Game (OSFRPG) rules. Other 2D6 systems are easily adapted.