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

Optimization · Pure Optimization
A mechanical journey adventure solved by understanding the logic of its automaton-filled world.
Indiana Jones and the Fate of Atlantis leans Optimization (Pure Optimization); Syberia 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
Syberia
Walking and clicking; zero reflex demand
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
Syberia
NPCs follow scripted dialogue trees with no adaptive modelling
Indiana Jones and the Fate of Atlantis leans a little harder on variance, though the gap is small.
Indiana Jones and the Fate of Atlantis
Solutions hidden until reasoned out
Syberia
Linear journey with virtually no hidden-information surprises
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
Syberia
Mechanical clockwork puzzles require mapping part relationships
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.