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 physics-puzzle horror game where methodical object manipulation and route knowledge reduce all tension.

Optimization · Pure Optimization
A psychological horror experience where puzzle knowledge and avoidance routing matter more than combat skill.
Penumbra: Overture leans Optimization (Pure Optimization); Silent Hill 2 (2001) leans Optimization (Pure Optimization).
Silent Hill 2 (2001) leans a little harder on execution, though the gap is small.
Penumbra: Overture
Physics-based interaction and basic evasion; low precision demand
Silent Hill 2 (2001)
Clunky combat is intentional; survival over precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Overture
Dogs follow scripted patrol and alarm states
Silent Hill 2 (2001)
Monsters follow simple fixed behaviours, never model the player
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Overture
Some item placements are hidden on first run
Silent Hill 2 (2001)
Some item placements are unknown first time; fixed thereafter
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Overture
Puzzle solutions and safe-zone routing are fully learnable
Silent Hill 2 (2001)
Puzzle solutions, route knowledge and weapon use are fully learnable
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.