Frostland

A major player near the Lucy Empire, they are the largest Neanderthal nation, and the largest country in the Playground, their capital, Froston, is world renowned because it is among 4 major cities of neanderthals, really rare given their tendency to be more solitary, it is the largest of the 4, at a whopping 120k people.

They are a federation.

They have defended against 3 separate Lucy Empire invasion attempts, usually outnumbered at around 3.2 to 1, they still successfully won each time due to their wisdom, strength, and the fact they were not too outnumbered.

The giant light blue mass in the top and right of the world is Frostland.