[jason210]

In WWI, we'd be playing without many of the technologies that WWII subs had, and there is a danger that this might seem dull.

A WWI sub simulation could be just great, but only if it introduced some revolutionary new things, such as full, 1st person camera movement around the ship. This is a must for any new subsim.

But that would not be enough. In order to be immersive it would need to be alive, with top notch graphics, detailed ships, detailed aircraft and detailed crews who walk around and do stuff.

And yet - I still don't think it would be enough. It would need something else. Perhaps more control of the U-boat would helpt....valves, engines, hydroplanes. And then a really good dynamic campaign.