Abandonware game spotlight: Starquake
Starquake is a weird DOS science fiction platform game developed by Bubble Bus Software in 1988 and designed by Stephen Crow and Dave Collins. I remember it fondly... it's not punishing and it's still very much enjoyable even today, after more than two decades.
The Commodore 64 version boasts a wonderful soundtrack. Unfortunately, the PC version comes with CGA graphics and no soundtrack.
You can also play Starquake online on Abandonware DOS.