While the Xeno series has, from its outset, always been about imaginative takes on worldbuilding, the Xenoblade subseries in particular has placed a strong emphasis on this.
Indeed, as we’ve already explored, the very reason the first Xenoblade Chronicles exists at all is because series creator Tetsuya Takahashi thought it would be cool to have a game set atop the bodies of two gigantic, frozen gods. The concept was subsequently fleshed out into the divide between the Bionis and the Mechonis, and the rest is history.
Xenoblade Chronicles X subsequently provided a somewhat different take on worldbuilding, providing us with a huge, seamless and geographically diverse planet to explore at our own pace. But Xenoblade Chronicles 2 is closer in concept to the first in the series, albeit with a few twists of its own.