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 · Light / Casual
A narrative horror-investigation game where uncovering the mystery outweighs any mechanical challenge.

Optimization · Practiced Mastery
A charming kid-friendly RPG with timing prompts and light costume strategy.
Call of Cthulhu leans Optimization (Light / Casual); Costume Quest leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu
light stealth timing, mostly minor
Costume Quest
Timed button prompts are the only dexterity ask
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Cthulhu
no opponents, narrative investigation
Costume Quest
Monster battles follow simple fixed scripts
Call of Cthulhu leans a little harder on variance, though the gap is small.
Call of Cthulhu
skill checks add randomness
Costume Quest
Quest content is fixed once doors are knocked
Costume Quest leans a little harder on optimization, though the gap is small.
Call of Cthulhu
stat allocation lightly solvable
Costume Quest
Costume ability matchups and stamp choices are light strategy
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.