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

Optimization · Pure Optimization
A psychological horror experience where puzzle knowledge and avoidance routing matter more than combat skill.

Optimization · Pure Optimization
A gentle turn-based system easily solved by build and gear choices.
Silent Hill 2 (2001) leans Optimization (Pure Optimization); South Park: The Stick of Truth leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Silent Hill 2 (2001)
Clunky combat is intentional; survival over precision
South Park: The Stick of Truth
Timed attack and block prompts add light input demands
Silent Hill 2 (2001) leans a little harder on reads, though the gap is small.
Silent Hill 2 (2001)
Monsters follow simple fixed behaviours, never model the player
South Park: The Stick of Truth
Enemies follow fixed turn-based scripts
Silent Hill 2 (2001) leans a little harder on variance, though the gap is small.
Silent Hill 2 (2001)
Some item placements are unknown first time; fixed thereafter
South Park: The Stick of Truth
Minor damage rolls; encounters are otherwise fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Silent Hill 2 (2001)
Puzzle solutions, route knowledge and weapon use are fully learnable
South Park: The Stick of Truth
Build, gear and ability choices comfortably solve every fight
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.