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 · Pure Optimization
A perspective-rotation platformer with a hidden cryptographic layer that rewards patient decoding.

Optimization · Pure Optimization
A puzzle game where photographs layered onto the world physically rebuild missing geometry.
Fez leans Optimization (Pure Optimization); Viewfinder 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.
Fez
Rotation and platforming needs light precision only
Viewfinder
Placing photo layers needs light spatial precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fez
No opponent; solo exploration puzzle
Viewfinder
No opponent; photograph-based puzzle
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fez
World is fixed and deterministic
Viewfinder
All scenes are deterministic
Fez leans a little harder on optimization, though the gap is small.
Fez
Decoding the deep cipher system and spatial cube logic is the core challenge
Viewfinder
Deducing which photo angle reconstructs the geometry needed to progress
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.