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
Methodical clue-gathering through a fixed voodoo mystery with single-solution puzzles.

Optimization · Pure Optimization
A dark adventure game about a suicidal woman granted immortality to hunt five psychopaths.
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition leans Optimization (Pure Optimization); The Cat Lady leans Optimization (Pure Optimization).
The Cat Lady leans a little harder on execution, though the gap is small.
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition
Pointing and clicking - no physical demand
The Cat Lady
Side-scrolling adventure controls require no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition
A scripted mystery with no adaptive adversary
The Cat Lady
The Parasites are story antagonists, not adaptive opponents
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition
Clues are hidden information until investigated
The Cat Lady
Mild unknowns in puzzle solutions on a blind playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition
Day-structured puzzle chains have one intended path
The Cat Lady
Adventure-game puzzles have fixed discoverable 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.
full breakdown
Gabriel Knight: Sins of the Fathers - 20th Anniversary Edition →
full breakdown
The Cat Lady →