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.

Execution · Light / Casual
A meditative underwater journey about swimming through gorgeous ocean vistas.

Execution · Light / Casual
A casual underwater shooting-gallery nature game.
ABZÛ leans Execution (Light / Casual); Sea Life Safari leans Execution (Light / Casual).
Sea Life Safari leans a little harder on execution, though the gap is small.
ABZÛ
Gentle swimming controls, no fail states
Sea Life Safari
light pointing/shooting at fish targets
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
No opponents at all
Sea Life Safari
no opponent, solo nature exploration
Sea Life Safari leans a little harder on variance, though the gap is small.
ABZÛ
Scripted reveals, minimal surprise
Sea Life Safari
random fish spawns and encounters
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
Linear path, nothing to solve
Sea Life Safari
minimal systems to master
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.