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
A football management sim testing squad-building, finance and tactical optimization.

Optimization · Pure Optimization
Deep empire optimisation over a hidden map against mappable AI.
FIFA Manager 14 leans Optimization (Pure Optimization); Sid Meier's Civilization IV leans Optimization (Pure Optimization).
FIFA Manager 14 leans a little harder on execution, though the gap is small.
FIFA Manager 14
Menu-driven management, no physical input skill
Sid Meier's Civilization IV
Turn-based clicks have no physical ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Manager 14
AI clubs follow scripted logic, no real adaptation
Sid Meier's Civilization IV
Human multiplayer adds diplomacy reads; AI is mappable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Manager 14
Match results and injuries carry simulation randomness
Sid Meier's Civilization IV
Map generation and unrevealed terrain drive early decisions
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Manager 14
Squad, finance and tactics planning dominates entirely
Sid Meier's Civilization IV
Tech paths, tile yields and expansion math dominate outcomes
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.