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
Hand-drawn interactive hidden-object game of finding tiny characters in bustling monochrome scenes.

Optimization · Pure Optimization
A LucasArts sci-fi adventure where astronauts stranded on an alien world puzzle out its dead civilization.
Hidden Folks leans Optimization (Systems & Chaos); The Dig 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.
Hidden Folks
Pointing and clicking only
The Dig
Point-and-click; no reflex demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hidden Folks
No opponent
The Dig
Alien world is static; companions follow scripts.
Hidden Folks leans a little harder on variance, though the gap is small.
Hidden Folks
Targets are hidden until spotted, then known forever
The Dig
Alien machinery's purpose is hidden until experimented with.
The Dig leans a little harder on optimization, though the gap is small.
Hidden Folks
Systematic scene scanning and clue interpretation
The Dig
Machine puzzles have single fixed solutions to deduce.
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.