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
Gentleman puzzler solves a village full of standalone brainteasers.

Optimization · Pure Optimization
A peaceful survival game about optimizing machines to terraform a dead planet.
Professor Layton and the Curious Village leans Optimization (Pure Optimization); The Planet Crafter 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
The Planet Crafter
Walking and placing machines, no dexterity test
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
The Planet Crafter
A dead planet offers no opposition
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
The Planet Crafter
Wreck locations unknown until explored, then fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Every brainteaser has one clean solvable answer
The Planet Crafter
Terraforming-index machine ratios are a solvable progression
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.