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 · Practiced Mastery
A reimagined Exoddus where Abe crafts tools from scavenged trash to free his enslaved kin.

Optimization · Practiced Mastery
A forgiving platformer testing light execution and exploration routing through fixed level designs.
Oddworld: Soulstorm leans Optimization (Practiced Mastery); Psychonauts 2 leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Oddworld: Soulstorm
Crafting under fire plus precise platforming
Psychonauts 2
Moderate platforming and combat timing, forgiving by design
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Oddworld: Soulstorm
Scripted Slig behavior throughout
Psychonauts 2
Solo adventure with no adaptive opponent anywhere
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Oddworld: Soulstorm
Loot containers add mild randomness
Psychonauts 2
Level layouts and collectibles are fixed once seen
Oddworld: Soulstorm leans a little harder on optimization, though the gap is small.
Oddworld: Soulstorm
Crafting economy and quarma routing reward optimization
Psychonauts 2
Routing collectibles and matching psychic powers to encounters
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.