head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Painterly cinematic puzzle platformer about a girl and her cat-like companion.

Optimization · Practiced Mastery
Gentle dimension-hopping puzzles dressed in light action, testing little beyond insight.
Planet of Lana leans Optimization (Practiced Mastery); The Plucky Squire leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Planet of Lana
Gentle platforming and chase sequences
The Plucky Squire
Light combat and platforming aimed at all ages
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Planet of Lana
Machines follow scripted patterns
The Plucky Squire
Scripted storybook enemies, nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Planet of Lana
Fully authored puzzles
The Plucky Squire
Every page-flip trick is authored
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Planet of Lana
Companion-command puzzles have single solutions
The Plucky Squire
2D-3D perspective puzzles are the real content
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.