head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Optimization · Systems & Chaos
Piecing together a dark mystery through light fixed puzzles.

Optimization · Pure Optimization
Experimenting with whimsical screens until their hidden interaction logic clicks.
Sally Face leans Optimization (Systems & Chaos); Samorost 2 leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Sally Face
Walking and clicking with no dexterity demands
Samorost 2
Pointing and clicking has no dexterity component
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sally Face
Story characters follow a fixed script
Samorost 2
No opponent of any kind exists
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sally Face
Mystery beats are hidden information until revealed
Samorost 2
Surreal puzzle logic is hidden until experimented with
Samorost 2 leans a little harder on optimization, though the gap is small.
Sally Face
Light puzzle logic and clue-piecing is the only system
Samorost 2
Each screen is a small solvable interaction 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.