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
Dystopian border-checkpoint sim where stamping passports fast enough feeds your family.

Optimization · Pure Optimization
A PS3 reimagining of Siren where American visitors evade undead villagers using sight-jacking stealth.
Papers, Please leans Optimization (Pure Optimization); Siren: Blood Curse leans Optimization (Pure Optimization).
Papers, Please leans a little harder on execution, though the gap is small.
Papers, Please
Document-checking speed directly pays the rent
Siren: Blood Curse
Stealth and occasional melee need only moderate precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Papers, Please
Entrants are generated, not adaptive opponents
Siren: Blood Curse
Shibito behaviour is scripted patrol logic, not adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Papers, Please
Random entrant documents and scripted-event surprises
Siren: Blood Curse
Hidden patrol routes and triggers until sightjacked and learned
Siren: Blood Curse leans a little harder on optimization, though the gap is small.
Papers, Please
Internalizing rulebooks and inspection workflow efficiency
Siren: Blood Curse
Episodic missions reduce to learnable route-and-timing puzzles
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.