Global Ultra v3 | AI Ship Traffic by Henrik Nielsen
Adds over 900 unique ship models and their routes. Very cool and in my opinion the single most game-changing add-on for MSFS. Consider that 70% of the earth's surface is water and that many capital cities are on the coast. Suddenly the blue zones come alive with ships and boats! | V.3 divides the routes into 8 zones, so you can use AddOn linker to only load those you need.