head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A comedic point-and-click adventure of pirate puzzles with fixed solutions.

Optimization · Pure Optimization
A hidden-object adventure about solving fixed environmental and inventory puzzles.
Escape from Monkey Island leans Optimization (Pure Optimization); Lost Lands: Dark Overlord 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.
Escape from Monkey Island
Pointing and walking only
Lost Lands: Dark Overlord
Point-and-click; no timing or aim demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Escape from Monkey Island
No opponent
Lost Lands: Dark Overlord
Solo with no adaptive adversary
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Escape from Monkey Island
Puzzle solutions hidden until discovered
Lost Lands: Dark Overlord
Hidden objects and clues unknown until found
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Escape from Monkey Island
Once known, every puzzle has one fixed answer
Lost Lands: Dark Overlord
Solving fixed inventory puzzles is the entire game
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.