A great look at how Unexplored 2: The Wayfarer's Legacy uses Voronoi graphs to create more natural and realistic looking generated maps:
Tiles to Curves: Fun With Voronoi Graphs (part 1)
This is a blog about our development of Unexplored 2: The Wayfarers Legacy. This game features state-of-the-art content generation, generative storytelling, emergent gameplay, adaptive music, and a vibrant art style. The content generator of Unexplored 2 generates tile maps. Typical output looks ...