Stars!

During a chat with some of my colleagues I remembered one of my favourite games, Stars!

The concept was simple, you start with a single planet, and then expand across the universe, encountering new technologies and races as the years pass. In many ways it's a fantastically engineered game. It's UI works just as effectively at 640x480 as it does at 2560x1600, It never crashes, it uses a small amount of memory and turns are quick, even with a 33Mhz CPU.

Despite it's basic appearance, it's extremely addictive. If you want to play it yourself you can find serial numbers and download links here.