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 · Systems & Chaos
A casual hidden-object hunt through an underwater city testing visual search patience.

Optimization · Pure Optimization
Claymation point-and-click adventure sculpted entirely from plasticine whimsy.
Abyss: The Wraiths of Eden leans Optimization (Systems & Chaos); 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.
Abyss: The Wraiths of Eden
Pointing at hidden objects takes no physical skill
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.
Abyss: The Wraiths of Eden
Scripted underwater ghosts, nothing adapts
The Neverhood
No opposition exists
Abyss: The Wraiths of Eden leans a little harder on variance, though the gap is small.
Abyss: The Wraiths of Eden
Scene contents are hidden only until searched
The Neverhood
Puzzles hidden until discovered, then fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Abyss: The Wraiths of Eden
Each hidden-object scene and puzzle has one fixed solution
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.