Solar Fade
Solar Fade is a Cepheus Engine (or other Classic 2D6 SF rules-set) one-shot scenario for 1-5 players. Designed to be played in a single session¸ the PCs find themselves part of a desperate scientific mission to discover why the sun is fading.
The world of Neoltillis is dying. The native species are dying off in droves as the sun fades¸ in six months the millions of human inhabitants will be dying too. In a desperate move the government fits out a ship to dive through the suns lethal corona to gather vital data¸ on which lies the hope of an entire planet.
As the PCs pilot this ship on its mission¸ they discover the alien device responsible for the solar fade. This leads them to an alien invading force that only they can stop.