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 relaxing hidden-object game finding 100 cats in alien scenes.

Variance · Light / Casual
A live-action FMV thriller steered through touchpad choices and gestures.
100 Aliens Cats leans Variance (Light / Casual); Erica leans Variance (Light / Casual).
100 Aliens Cats leans a little harder on execution, though the gap is small.
100 Aliens Cats
Pointing and clicking needs no dexterity
Erica
Touch gestures with no skill ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
100 Aliens Cats
Solo hidden-object game with no opponent
Erica
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
100 Aliens Cats
Cat positions are hidden until found
Erica
Branch outcomes hidden on first viewing
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
100 Aliens Cats
Methodical searching speeds completion
Erica
Mapping choice branches across replays
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.