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.

Optimization · Pure Optimization
Idle tycoon compounding where building placement efficiency is everything.

Optimization · Pure Optimization
Sequel that adds a mother-daughter pair to its impossible-architecture puzzles.
Loaded Lions: Mane City leans Optimization (Pure Optimization); Monument Valley 2 leans Optimization (Pure Optimization).
Monument Valley 2 leans a little harder on execution, though the gap is small.
Loaded Lions: Mane City
Idle clicking with no dexterity component
Monument Valley 2
Gentle touch controls, no reflexes
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Loaded Lions: Mane City
No opponent adapts to your city
Monument Valley 2
Nothing opposes you
Loaded Lions: Mane City leans a little harder on variance, though the gap is small.
Loaded Lions: Mane City
Reward rolls add minor randomness
Monument Valley 2
Deterministic authored levels
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Loaded Lions: Mane City
Placement efficiency and income compounding are the whole game
Monument Valley 2
Geometry manipulation puzzles with intended solutions
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.