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 · Pure Optimization
The 2001 Civilization entry that introduced culture, strategic resources and refined empire micromanagement.

Optimization · Pure Optimization
Optimizing regional economics and city services to sustain growth without collapsing your budget.
Sid Meier's Civilization III leans Optimization (Pure Optimization); SimCity 4 leans Optimization (Pure Optimization).
SimCity 4 leans a little harder on execution, though the gap is small.
Sid Meier's Civilization III
No dexterity in a turn-based interface
SimCity 4
Point-and-click placement; zero reflex requirement
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sid Meier's Civilization III
AI personalities are fixed and mappable
SimCity 4
Solo sandbox with no adversarial pressure
Sid Meier's Civilization III leans a little harder on variance, though the gap is small.
Sid Meier's Civilization III
Random maps, resources and combat rolls matter early
SimCity 4
Neighbor city interactions and demand curves add unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Sid Meier's Civilization III
Corruption math, worker turns and culture borders reward deep optimization
SimCity 4
Budget, ordinances, and transport networks are the core puzzle
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.