head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Mind & Math
A colonial-era RTS adding home-city card shipments to classic Age economy play.

Optimization · Mind & Math
Norse-flavored RTS with tile control and seasonal pressure.
Age of Empires III leans Optimization (Mind & Math); Northgard leans Optimization (Mind & Math).
Age of Empires III leans a little harder on execution, though the gap is small.
Age of Empires III
Unit micro and raid defense
Northgard
light micro under pressure
Age of Empires III leans a little harder on reads, though the gap is small.
Age of Empires III
Human deck and timing reads in ranked
Northgard
MP vs adaptive humans
Age of Empires III leans a little harder on variance, though the gap is small.
Age of Empires III
Map spawns and shipment ordering unknowns
Northgard
winters, wandering events
Age of Empires III leans a little harder on optimization, though the gap is small.
Age of Empires III
Home-city decks are a build-crafting layer
Northgard
clan economy and tile control
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.