head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Mind & Math
Norse-flavored RTS with tile control and seasonal pressure.

Optimization · Mind & Math
The pioneering sandbox MMORPG of player economies, housing, and open PvP.
Northgard leans Optimization (Mind & Math); Ultima Online leans Optimization (Mind & Math).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Northgard
light micro under pressure
Ultima Online
PvP timing and macro dexterity matter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Northgard
MP vs adaptive humans
Ultima Online
Player killers and traders adapt to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Northgard
winters, wandering events
Ultima Online
Open-world encounters and loot uncertainty
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Northgard
clan economy and tile control
Ultima Online
Skill builds and the player economy reward system mastery
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.