No official Eddie Stobart game exists on Xbox (or any platform). The iconic UK logistics brand—known for its green trucks, "Stobart Girl" names, and fan following—has never been licensed for a dedicated video game.
If you're on Xbox, you can't use mods. But ETS2 + ATS are the deepest trucking experiences available—and on Game Pass, they're free to try. A branded Stobart game remains a fan wish, not a product.