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

Optimization · Practiced Mastery
A slapstick co-op moving simulator about hurling furniture into a truck against the clock.

Execution · Practiced Mastery
An action RPG where narrative depth is paired with moderately solvable combat systems.
Moving Out leans Optimization (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.
Moving Out
Physics carrying, throwing, and steering under time pressure
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.
Moving Out
No adaptive opposition; pure co-op chaos
NieR
scripted enemies, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Moving Out
Ragdoll physics adds slapstick unpredictability
NieR
loot and encounter randomness
Moving Out leans a little harder on optimization, though the gap is small.
Moving Out
Routing furniture and splitting tasks drives gold times
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.