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
Tests visual search and light puzzle solving through a scripted mystery.

Optimization · Pure Optimization
Telltale's episodic comedy adventure sending Guybrush Threepwood after a pox plaguing the Caribbean.
Dark Arcana: The Carnival leans Optimization (Systems & Chaos); Tales of Monkey Island leans Optimization (Pure Optimization).
Dark Arcana: The Carnival leans a little harder on execution, though the gap is small.
Dark Arcana: The Carnival
Clicking hidden objects needs no dexterity
Tales of Monkey Island
Click-driven; no physical demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dark Arcana: The Carnival
Solo with entirely scripted story beats
Tales of Monkey Island
LeChuck and pirates are pure script.
Dark Arcana: The Carnival leans a little harder on variance, though the gap is small.
Dark Arcana: The Carnival
Object locations are unknown until spotted
Tales of Monkey Island
Modern design telegraphs most puzzle information.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dark Arcana: The Carnival
Minigames and scene logic have fixed solutions
Tales of Monkey Island
Episodic inventory puzzles each have one intended solution.
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.