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 tactical RPG where careful positioning and managing randomized combat odds decides survival.

Optimization · Pure Optimization
The 1996 landmark 4X where you guide a civilization from antiquity to the space race.
Fire Emblem Fates: Birthright leans Optimization (Pure Optimization); Sid Meier's Civilization II leans Optimization (Pure Optimization).
Fire Emblem Fates: Birthright leans a little harder on execution, though the gap is small.
Fire Emblem Fates: Birthright
no real-time physical skill, turn-based
Sid Meier's Civilization II
Turn-based clicking only
Fire Emblem Fates: Birthright leans a little harder on reads, though the gap is small.
Fire Emblem Fates: Birthright
AI is scripted, no true adaptation
Sid Meier's Civilization II
AI civs are exploitable scripts, not adaptive rivals
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fire Emblem Fates: Birthright
hit chance rolls are heavily randomized
Sid Meier's Civilization II
Random maps and hut rolls inject early uncertainty
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fire Emblem Fates: Birthright
permadeath tactics and builds near-solvable
Sid Meier's Civilization II
City spacing, trade routes and tech paths are deeply solvable
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.