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

Optimization · Pure Optimization
The classic survival horror sequel where ammo budgeting and route knowledge tame Raccoon City.
Papers, Please leans Optimization (Pure Optimization); Resident Evil 2 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.
Papers, Please
Document-checking speed directly pays the rent
Resident Evil 2
Tank controls and aim need competence, not mastery
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
Resident Evil 2
Zombies are scripted, never adaptive
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
Resident Evil 2
First-run item and enemy placement is hidden information
Resident Evil 2 leans a little harder on optimization, though the gap is small.
Papers, Please
Internalizing rulebooks and inspection workflow efficiency
Resident Evil 2
Routing, ammo economy, and puzzles fully converge on replay
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.