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.

Optimization · Practiced Mastery
A co-op teen survival horror where light is a weapon and dead classmates stay dead.

Optimization · Pure Optimization
A gentle turn-based system easily solved by build and gear choices.
ObsCure leans Optimization (Practiced Mastery); 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.
ObsCure
Light aiming and flashlight management
South Park: The Stick of Truth
Timed attack and block prompts add light input demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ObsCure
Scripted monster encounters
South Park: The Stick of Truth
Enemies follow fixed turn-based scripts
ObsCure leans a little harder on variance, though the gap is small.
ObsCure
Permadeath partners and darkness hide information
South Park: The Stick of Truth
Minor damage rolls; encounters are otherwise fixed
South Park: The Stick of Truth leans a little harder on optimization, though the gap is small.
ObsCure
Resource routing and light tactics are 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.