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
The faithful remaster of Diablo II preserving its loot grind and build depth under new graphics.

Optimization · Systems & Chaos
PS1 virtual-pet RPG where you raise, train, and evolve a Digimon whose growth follows hidden rules.
Diablo II: Resurrected leans Optimization (Pure Optimization); Digimon World leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo II: Resurrected
Same forgiving click combat as the original
Digimon World
Light real-time battle nudging and timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo II: Resurrected
Identical scripted monster AI
Digimon World
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.
Diablo II: Resurrected
Loot tables and area randomization rule drops
Digimon World
Hidden evolution requirements and care mistakes dominate early play
Diablo II: Resurrected leans a little harder on optimization, though the gap is small.
Diablo II: Resurrected
Decades of solved builds, breakpoints, and farming routes
Digimon World
Once requirements are mapped, raising becomes a solvable schedule
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.