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.

Variance · Light / Casual
A narrative thriller testing whether you can untangle scripted unreliable memories.

Optimization · Light / Casual
A first-person horror about exploring a haunted Prussian castle.
Alfred Hitchcock: Vertigo leans Variance (Light / Casual); Amnesia: The Dark Descent leans Optimization (Light / Casual).
Amnesia: The Dark Descent leans a little harder on execution, though the gap is small.
Alfred Hitchcock: Vertigo
Light interaction in a narrative framework
Amnesia: The Dark Descent
Stealth and hiding, low demand.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Alfred Hitchcock: Vertigo
Characters follow a script, not your behaviour
Amnesia: The Dark Descent
Monsters follow scripted patrols.
Alfred Hitchcock: Vertigo leans a little harder on variance, though the gap is small.
Alfred Hitchcock: Vertigo
Unreliable memories hide the true sequence of events
Amnesia: The Dark Descent
Minor encounter variation.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alfred Hitchcock: Vertigo
Cross-checking timelines is a fixed solvable puzzle
Amnesia: The Dark Descent
Oil and sanity management is shallow.
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.