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

Optimization · Pure Optimization
First-person puzzle adventure unraveling a Lovecraft-tinged island mystery.

Optimization · Pure Optimization
A studio-management economy puzzle dressed up as Hollywood moviemaking.
Call of the Sea leans Optimization (Pure Optimization); The Movies leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Call of the Sea
Walking and clicking, no dexterity test
The Movies
Menu and drag management, no dexterity test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of the Sea
No opponent of any kind
The Movies
No adaptive rival studios to outwit
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of the Sea
Hidden solutions surprise only once
The Movies
Star moods and script rolls add light randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of the Sea
Deducing fixed puzzle logic is the whole game
The Movies
Studio economy, staffing and timing are the solvable core
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.