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

Optimization · Practiced Mastery
A loot-heavy open-world action RPG with flashy combo combat and a famously breakable crafting system.

Optimization · Pure Optimization
Immersive sim aboard Talos I where build and route choices dominate.
Kingdoms of Amalur: Reckoning leans Optimization (Practiced Mastery); Prey (2017) leans Optimization (Pure Optimization).
Kingdoms of Amalur: Reckoning leans a little harder on execution, though the gap is small.
Kingdoms of Amalur: Reckoning
Dodge-and-combo combat, forgiving timing
Prey (2017)
Wrench and Gloo timing modest.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms of Amalur: Reckoning
Enemies never adapt to your habits
Prey (2017)
Typhon AI scripted, not adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms of Amalur: Reckoning
Loot rolls add light randomness
Prey (2017)
Mimics and resource spawns randomized.
Prey (2017) leans a little harder on optimization, though the gap is small.
Kingdoms of Amalur: Reckoning
Destiny builds and crafting trivialise difficulty
Prey (2017)
Neuromods, builds, station routing deeply solvable.
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.