head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

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

Optimization · Pure Optimization
A dark psychological point-and-click adventure driven by fixed puzzles and a disturbing story.
Escape from Monkey Island leans Optimization (Pure Optimization); Fran Bow 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
Fran Bow
Point-and-click inputs only
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
Fran Bow
No opponents
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
Fran Bow
Hidden story layers until discovered
Escape from Monkey Island leans a little harder on optimization, though the gap is small.
Escape from Monkey Island
Once known, every puzzle has one fixed answer
Fran Bow
Fixed puzzle solutions; 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.