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

Execution · Light / Casual
Wordless watercolor platformer about grief, designed never to punish you.

Execution · Light / Casual
A casual underwater shooting-gallery nature game.
Gris leans Execution (Light / Casual); Sea Life Safari leans Execution (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Gris
Gentle platforming with no fail state
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.
Gris
No opposition at all
Sea Life Safari
no opponent, solo nature exploration
Sea Life Safari leans a little harder on variance, though the gap is small.
Gris
Linear and fully authored
Sea Life Safari
random fish spawns and encounters
Gris leans a little harder on optimization, though the gap is small.
Gris
Light environmental puzzles with obvious solutions
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.