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
Solving fixed grim puzzles to escape a facility, dexterity-free.

Optimization · Pure Optimization
A comedic point-and-click adventure of pirate puzzles with fixed solutions.
Cayne leans Optimization (Pure Optimization); Escape from Monkey Island leans Optimization (Pure Optimization).
Escape from Monkey Island leans a little harder on execution, though the gap is small.
Cayne
Isometric point-and-click, no dexterity
Escape from Monkey Island
Pointing and walking only
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cayne
No adaptive threat in the facility
Escape from Monkey Island
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Cayne
Story horrors are hidden until uncovered, then static
Escape from Monkey Island
Puzzle solutions hidden until discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cayne
Solving fixed environmental puzzles drives all progress
Escape from Monkey Island
Once known, every puzzle has one fixed answer
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.