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

Optimization · Mind & Math
A sloppy RTS still testing build orders and economy ahead of micro.

Optimization · Mind & Math
Norse-flavored RTS with tile control and seasonal pressure.
Empire Earth III leans Optimization (Mind & Math); Northgard 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.
Empire Earth III
Macro speed matters though far less than in tighter RTS peers
Northgard
light micro under pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Empire Earth III
Human opponents' timing attacks must be scouted and predicted
Northgard
MP vs adaptive humans
Northgard leans a little harder on variance, though the gap is small.
Empire Earth III
Map starts and AI behaviour hold mild unknowns
Northgard
winters, wandering events
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Empire Earth III
Epoch timing and economy builds dominate outcomes
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.