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 perspective-rotation platformer with a hidden cryptographic layer that rewards patient decoding.

Optimization · Pure Optimization
A visual programming puzzle that teaches algorithmic thinking through factory-floor instruction sequences.
Fez leans Optimization (Pure Optimization); Human Resource Machine leans Optimization (Pure Optimization).
Fez leans a little harder on execution, though the gap is small.
Fez
Rotation and platforming needs light precision only
Human Resource Machine
Dragging instructions has no timing component
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
Human Resource Machine
No opponent; purely computational 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
Human Resource Machine
Input data is fixed per level with no randomness
Human Resource Machine 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
Human Resource Machine
Writing minimal correct assembly-like programs to pass each input sequence
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.