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 · Pure Optimization
The genre-defining metroidvania with deep RPG systems.

Optimization · Practiced Mastery
A co-op looter shooter where aggressive ability builds and gear mods carry you through escalating expeditions.
Castlevania: Symphony of the Night leans Optimization (Pure Optimization); Outriders leans Optimization (Practiced Mastery).
Outriders leans a little harder on execution, though the gap is small.
Castlevania: Symphony of the Night
Forgiving action combat
Outriders
Cover shooting and ability timing matter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Symphony of the Night
Scripted bosses
Outriders
AI hordes are scripted aggression
Outriders leans a little harder on variance, though the gap is small.
Castlevania: Symphony of the Night
Item drops and rare gear
Outriders
Loot rolls gate the build chase
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Symphony of the Night
Build crafting and sequence breaks
Outriders
Class builds and mod stacking dominate endgame
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.