head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, 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 bite-sized 3D Mario that compresses Galaxy-style level design into linear handheld courses.
Little Nightmares leans Execution (Practiced Mastery); Super Mario 3D Land leans Execution (Practiced Mastery).
Super Mario 3D Land leans a little harder on execution, though the gap is small.
Little Nightmares
Stealth platforming demands timing.
Super Mario 3D Land
3D jumps and special-world remixes need clean control
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.
Super Mario 3D Land
Scripted enemies and bosses only
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.
Super Mario 3D Land
Star coin locations hidden on first pass
Super Mario 3D Land leans a little harder on optimization, though the gap is small.
Little Nightmares
Routes have fixed solutions.
Super Mario 3D Land
Star coin collection and power-up management are solvable
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.