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

Optimization · Pure Optimization
A mechanical journey adventure solved by understanding the logic of its automaton-filled world.

Optimization · Pure Optimization
A fixed-solution puzzle adventure where finding the right inventory combination unlocks every obstacle.
Syberia leans Optimization (Pure Optimization); The Secret of Monkey Island 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
Walking and clicking; zero reflex demand
The Secret of Monkey Island
Clicking inventory items demands no twitch skill whatsoever
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Syberia
NPCs follow scripted dialogue trees with no adaptive modelling
The Secret of Monkey Island
No adaptive opponent; all puzzles are fixed and authored
The Secret of Monkey Island leans a little harder on variance, though the gap is small.
Syberia
Linear journey with virtually no hidden-information surprises
The Secret of Monkey Island
Some hidden items require exploration but solutions are invariant
The Secret of Monkey Island leans a little harder on optimization, though the gap is small.
Syberia
Mechanical clockwork puzzles require mapping part relationships
The Secret of Monkey Island
Correct item combinations and dialogue chains fully determine progress
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.