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

Optimization · Light / Casual
A hidden-object hunt rewarding patient visual scanning of dense scenes.

Variance · Light / Casual
An interactive story that tests emotional choice, not skill.
A Castle Full of Cats leans Optimization (Light / Casual); The Walking Dead leans Variance (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
A Castle Full of Cats
Pointing and clicking at cats, nothing more
The Walking Dead
Quick-time prompts are forgiving and rarely fail the story
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
A Castle Full of Cats
No opponent anywhere in the castle
The Walking Dead
No opponent - characters follow the script
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
A Castle Full of Cats
Hidden cats are unknown positions until spotted
The Walking Dead
Branch outcomes are hidden on a first playthrough only
A Castle Full of Cats leans a little harder on optimization, though the gap is small.
A Castle Full of Cats
Methodical scene-sweeping solves it completely
The Walking Dead
Choices barely gate progress; nothing meaningful to solve
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.