head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Light / Casual
A relaxed hidden-object game about spotting cats in detailed scenes.

Optimization · Pure Optimization
Claymation point-and-click adventure sculpted entirely from plasticine whimsy.
A Tower Full of Cats leans Optimization (Light / Casual); The Neverhood 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.
A Tower Full of Cats
Clicking hidden cats has no timing pressure
The Neverhood
Point-and-click; no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
A Tower Full of Cats
Solo - nothing to predict
The Neverhood
No opposition exists
A Tower Full of Cats leans a little harder on variance, though the gap is small.
A Tower Full of Cats
Cat locations unknown until found, mildly randomized feel
The Neverhood
Puzzles hidden until discovered, then fixed
The Neverhood leans a little harder on optimization, though the gap is small.
A Tower Full of Cats
Systematic scanning speeds completion but trivial
The Neverhood
Adventure puzzle chains with single 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.