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 mechanical journey adventure solved by understanding the logic of its automaton-filled world.

Optimization · Pure Optimization
A self-aware mystery adventure testing systematic multi-character puzzle solving in a classic idiom.
Syberia leans Optimization (Pure Optimization); Thimbleweed Park 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
Thimbleweed Park
Classic SCUMM-style interface with no twitch elements
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
Thimbleweed Park
Scripted mystery narrative; NPCs never adapt to player choices
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Syberia
Linear journey with virtually no hidden-information surprises
Thimbleweed Park
Deterministic puzzles throughout the game
Thimbleweed Park leans a little harder on optimization, though the gap is small.
Syberia
Mechanical clockwork puzzles require mapping part relationships
Thimbleweed Park
Multi-character inventory puzzles demand systematic causal reasoning
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.