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 · Pure Optimization
LucasArts adventure sending Indy down three routes toward Atlantis.

Optimization · Pure Optimization
A slow-burn first-person adventure investigating strange scratching sounds in an isolated Victorian mansion.
Indiana Jones and the Fate of Atlantis leans Optimization (Pure Optimization); Scratches 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.
Indiana Jones and the Fate of Atlantis
Pointing and clicking, light fistfight option
Scratches
First-person point-and-click input is physically trivial
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Indiana Jones and the Fate of Atlantis
No adaptive opposition
Scratches
No opponents at all, only an empty haunted estate
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Indiana Jones and the Fate of Atlantis
Solutions hidden until reasoned out
Scratches
The mystery's hidden answers drive a blind first run
Indiana Jones and the Fate of Atlantis leans a little harder on optimization, though the gap is small.
Indiana Jones and the Fate of Atlantis
Three-path puzzle chains reward deduction
Scratches
Investigation puzzles resolve to one fixed solution path
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.