[WH4K]

Using an essentially "flat" Earth is understandable, and probably vastly simplified development. So I can see why Ubi's done it.

Using a realistic round earth would require a lot of the same techniques that were developed for real-world navigation, so it's not as if Ubisoft would have to reinvent spherical coordinates etc. Today's desktop PC's have a surfeit of processing power, so the only barrier to round-Earth modeling in games is development time.

Now I'm wondering how flight sims handle this? MS Flight Simulator was around for many years, and was generally considered one of the most realistic flight sims available on a PC. I'm sure at some point they had the "flat earth" vs. "round earth" debate.