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 point-and-click horror finale built on solving fixed puzzles and codes.
Call of the Sea leans Optimization (Pure Optimization); True Fear: Forsaken Souls Part 3 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
True Fear: Forsaken Souls Part 3
Point-and-click, no reflex demands
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
True Fear: Forsaken Souls Part 3
Story scripted, no adaptive adversary
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
True Fear: Forsaken Souls Part 3
Fixed puzzles, minimal 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
True Fear: Forsaken Souls Part 3
Solving puzzles and inventory chains drives progress
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.