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 · Systems & Chaos
A narrative investigation set in a 16th-century Bavarian abbey.

Optimization · Systems & Chaos
A wordless surreal exploration game about wandering a sleeping girl's dreamscapes.
Pentiment leans Optimization (Systems & Chaos); Yume Nikki leans Optimization (Systems & Chaos).
Yume Nikki leans a little harder on execution, though the gap is small.
Pentiment
Point-and-click, no dexterity demand.
Yume Nikki
Just walking, no challenge on inputs
Pentiment leans a little harder on reads, though the gap is small.
Pentiment
NPCs react to choices but scripted.
Yume Nikki
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.
Pentiment
Hidden evidence and outcomes vary by playthrough.
Yume Nikki
Random events and obscure unknown triggers
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Pentiment
Dialogue and time budgeting reward planning.
Yume Nikki
Mapping the dream worlds to find 24 effects
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.