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
Gentleman puzzler solves a village full of standalone brainteasers.

Optimization · Pure Optimization
A classic psychological adventure where an amnesiac navigates surreal delusions to recover his identity.
Professor Layton and the Curious Village leans Optimization (Pure Optimization); Sanitarium 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.
Professor Layton and the Curious Village
Stylus taps only; no dexterity pressure at all
Sanitarium
Point-and-click navigation requires no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
No opponent, adaptive or otherwise
Sanitarium
No opponents; the delusions follow a fixed narrative
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Puzzle answers are hidden until reasoned out, then fixed
Sanitarium
Surreal puzzle logic is unknown until reasoned out
Professor Layton and the Curious Village leans a little harder on optimization, though the gap is small.
Professor Layton and the Curious Village
Every brainteaser has one clean solvable answer
Sanitarium
Every chapter is a deterministic puzzle to solve
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.