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 · Pure Optimization
A dark psychological point-and-click adventure driven by fixed puzzles and a disturbing story.

Optimization · Systems & Chaos
Piecing together a dark mystery through light fixed puzzles.
Fran Bow leans Optimization (Pure Optimization); Sally Face leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
Point-and-click inputs only
Sally Face
Walking and clicking with no dexterity demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
No opponents
Sally Face
Story characters follow a fixed script
Sally Face leans a little harder on variance, though the gap is small.
Fran Bow
Hidden story layers until discovered
Sally Face
Mystery beats are hidden information until revealed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
Fixed puzzle solutions; fully solvable
Sally Face
Light puzzle logic and clue-piecing is the only system
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.