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
An engineering puzzle about building physics-stable structures under budget, zombies incidental.

Optimization · Pure Optimization
First-person puzzle adventure unraveling a Lovecraft-tinged island mystery.
Bridge Constructor: The Walking Dead leans Optimization (Pure Optimization); Call of the Sea 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.
Bridge Constructor: The Walking Dead
Placing struts is unhurried mouse work
Call of the Sea
Walking and clicking, no dexterity test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bridge Constructor: The Walking Dead
Zombies shamble along wholly scripted paths
Call of the Sea
No opponent of any kind
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bridge Constructor: The Walking Dead
Level gimmicks are unknown only on first attempt
Call of the Sea
Hidden solutions surprise only once
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bridge Constructor: The Walking Dead
Physics-stable structures under budget are near-literally solvable
Call of the Sea
Deducing fixed puzzle logic is the whole game
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.