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
A meta puzzle adventure where the game knows your name and you only get one shot.

Optimization · Pure Optimization
A heartfelt WWI puzzle adventure following four lives through the trenches.
OneShot leans Optimization (Pure Optimization); Valiant Hearts: The Great War 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.
OneShot
Point-and-click pacing, no reflex test
Valiant Hearts: The Great War
Gentle timing in a few chase sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
OneShot
The game addresses you but never adapts strategically
Valiant Hearts: The Great War
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
OneShot
Deterministic puzzle world
Valiant Hearts: The Great War
Fixed puzzles, fully visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
OneShot
Fourth-wall puzzles have fixed solutions
Valiant Hearts: The Great War
Simple inventory and environmental puzzles with set 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.