head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Lovecraftian first-person horror where survival means learning Innsmouth's scripted terrors.

Optimization · Practiced Mastery
A block-stacking puzzle about building paths to collect items.
Call of Cthulhu: Dark Corners of the Earth leans Optimization (Practiced Mastery); Hello Kitty's Cube Frenzy leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu: Dark Corners of the Earth
Tense chase and shooting sequences need steady hands
Hello Kitty's Cube Frenzy
Block placement timing needs light dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu: Dark Corners of the Earth
Cultists follow scripts, never adapt
Hello Kitty's Cube Frenzy
Solo with no opponent to predict
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu: Dark Corners of the Earth
First-run dread from unknown scripted events
Hello Kitty's Cube Frenzy
Falling block colors add some randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu: Dark Corners of the Earth
Learning routes, hiding spots, and sequences solves it
Hello Kitty's Cube Frenzy
Planning staircases and color matches solves levels
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.