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

Execution · Practiced Mastery
Claustrophobic post-apocalyptic shooter where bullets double as currency.

Execution · Practiced Mastery
An action RPG where narrative depth is paired with moderately solvable combat systems.
Metro 2033 leans Execution (Practiced Mastery); NieR leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Metro 2033
scarce-ammo gunfights punish sloppy aim
NieR
combat timing and dodges matter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metro 2033
mutants and bandits follow scripts
NieR
scripted enemies, no adaptation
Metro 2033 leans a little harder on variance, though the gap is small.
Metro 2033
hidden moral points and supplies first run
NieR
loot and encounter randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metro 2033
ammo-as-currency economy and stealth routing
NieR
builds and side systems solvable
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.