head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Pure Optimization
A Viking survival game where preparing properly trivialises each biome boss.

Optimization · Practiced Mastery
An action RPG where leveling means choosing which Londoners to drain.
Valheim leans Optimization (Pure Optimization); Vampyr leans Optimization (Practiced Mastery).
Vampyr leans a little harder on execution, though the gap is small.
Valheim
Block-and-parry timing matters in boss fights.
Vampyr
Dodge-and-stamina melee combat with modest demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Valheim
Enemies follow scripted AI; no adaptation.
Vampyr
Enemies follow scripted patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Valheim
World seed and biome layout introduce mild randomness.
Vampyr
Citizen secrets are hidden until investigated
Valheim leans a little harder on optimization, though the gap is small.
Valheim
Gear progression and base infrastructure define progress.
Vampyr
The feed-or-spare XP economy is the central solvable system
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.