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
Methodical puzzle-solving through a fixed, story-driven mystery.

Optimization · Pure Optimization
Lateral-thinking puzzle solving that converges to a walkthrough once solutions are known.
Syberia: The World Before leans Optimization (Pure Optimization); The Secret of Monkey Island: Special Edition 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.
Syberia: The World Before
Pointing and clicking demands nothing physical
The Secret of Monkey Island: Special Edition
Pointing and clicking has no physical ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Syberia: The World Before
No adversary exists
The Secret of Monkey Island: Special Edition
Insult swordfighting is scripted dialogue lookup, not prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Syberia: The World Before
The mystery is hidden information revealed on rails
The Secret of Monkey Island: Special Edition
Puzzle solutions are hidden information until discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Syberia: The World Before
Mechanical puzzles each have a single discoverable solution
The Secret of Monkey Island: Special Edition
Once solutions are known the game is fully solved
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.
full breakdown
Syberia: The World Before →
full breakdown
The Secret of Monkey Island: Special Edition →