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.

Execution · Practiced Mastery
A dark puzzle-platformer about a tiny girl in a grotesque world.

Execution · Practiced Mastery
A cinematic puzzle-platformer emphasizing atmosphere and light puzzle-solving.
Little Nightmares leans Execution (Practiced Mastery); Planet of Lana II: Children of the Leaf leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Little Nightmares
Stealth platforming demands timing.
Planet of Lana II: Children of the Leaf
platforming timing and puzzle-action sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Little Nightmares
Enemies are scripted.
Planet of Lana II: Children of the Leaf
no adaptive opponent, scripted threats
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Little Nightmares
Minimal randomness.
Planet of Lana II: Children of the Leaf
minimal randomness, deterministic puzzles
Little Nightmares leans a little harder on optimization, though the gap is small.
Little Nightmares
Routes have fixed solutions.
Planet of Lana II: Children of the Leaf
minor puzzle-solving sequencing
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.