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 · Practiced Mastery
A Revolution-era Paris entry built around dense crowds and open-ended blackbox assassinations.

Optimization · Pure Optimization
A forgiving moral-choice RPG where build and economy decisions outweigh combat skill.
Assassin's Creed Unity leans Optimization (Practiced Mastery); Fable Anniversary leans Optimization (Pure Optimization).
Assassin's Creed Unity leans a little harder on execution, though the gap is small.
Assassin's Creed Unity
Refined parkour, still forgiving combat
Fable Anniversary
Forgiving combat across melee, ranged and magic
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Unity
Co-op partners face scripted guards
Fable Anniversary
Bandits and balverines follow fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Unity
Fixed sandbox assassinations
Fable Anniversary
Albion is handcrafted and fully learnable
Fable Anniversary leans a little harder on optimization, though the gap is small.
Assassin's Creed Unity
Gear builds and blackbox approach planning
Fable Anniversary
Alignment, build and economy choices are the systems layer
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.