It came out towards the later years of the BBC micro.
Tbh it was an Elite clone but the big difference was that it was set underwater and instead of having space-stations etc there were underwater ports and bouys and things.
I bought it and was quite impressed with it to be completely honest. I remember it had U in the title and it could have been an acronym, such as UIM, USM or something like that. It had the wireframe graphics just as Elite and I remember was quite distinctively green. All the usual things such as trading, upgrading, exploring etc.
I have been going mad trying to remember exactly what it was. I can't even remember the company it was by. I was tempted to think Superior, but it may not have been.
Anyone have their thinking cap on ?
