This was a PC game I remember from the earlyish '90s (1992–1993 or somewhere around then). I remember some specific pieces but not the overall gameplay. It was a game where you built up your army (or maybe empire) and sent ships out for space battles.

The two distinct elements I remember are:

* There was a specific self-destruct sequence you could undertake for your spaceships. I remember this serving a purpose; i.e., you could get to a point in the game where it made more sense to self-destruct rather than continue. On the screen, it revealed a series of numbers you had to type in. It was 'done up' and presented as a measure of last resort
* I also remember a lot of purples and yellows from the game. That might sound laughable, but I believe the screen was divided into multiple panels, trying to look like 'real' computer screens on a spaceship. I believe a lot of that framing was in purples or yellows perhaps?

I know that isn't much to go on but I've been digging and just can't find anything. I remember playing Overlord in this time period, but I don't believe the above elements are from that game, but I could be wrong....

Thanks in advance! Hopefully this is enough to job someone's memory out there.