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
Methodically scanning scenes and solving stock puzzles through a pirate story.

Optimization · Pure Optimization
Comedic point-and-click adventure of Guybrush Threepwood, hand-drawn at its peak.
Nightmares from the Deep 3: Davy Jones leans Optimization (Pure Optimization); The Curse of Monkey Island leans Optimization (Pure Optimization).
Nightmares from the Deep 3: Davy Jones leans a little harder on execution, though the gap is small.
Nightmares from the Deep 3: Davy Jones
Clicking hidden objects has no physical ceiling
The Curse of Monkey Island
pointing and clicking only
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Nightmares from the Deep 3: Davy Jones
Story villains are fully scripted
The Curse of Monkey Island
no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Nightmares from the Deep 3: Davy Jones
Object locations are unknown information until spotted
The Curse of Monkey Island
puzzle solutions unknown on first play, then fixed
The Curse of Monkey Island leans a little harder on optimization, though the gap is small.
Nightmares from the Deep 3: Davy Jones
Scene-scanning and puzzle logic converge to a checklist
The Curse of Monkey Island
inventory logic puzzles are fully solvable
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.