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

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

Execution · Light / Casual
An emotional traversal story with light puzzles and almost no skill gate.
Gris leans Execution (Light / Casual); Sea of Solitude 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 of Solitude
Gentle traversal and swimming with generous margins
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 of Solitude
Monsters are story beats, not adversaries
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gris
Linear and fully authored
Sea of Solitude
The journey is entirely scripted
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gris
Light environmental puzzles with obvious solutions
Sea of Solitude
Light environmental puzzles with single solutions
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.