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 · Systems & Chaos
A daily-run puzzle game where a randomised mansion layout must be navigated using logic and route planning.

Optimization · Pure Optimization
The genre-defining loot ARPG whose builds, runes, and trade economy players still optimize decades later.
Blue Prince leans Optimization (Systems & Chaos); Diablo II leans Optimization (Pure Optimization).
Diablo II leans a little harder on execution, though the gap is small.
Blue Prince
Placing rooms and navigating them needs no dexterity
Diablo II
Positioning and potion reflexes, little else physical
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Blue Prince
No adaptive opponent; solo mansion puzzle
Diablo II
Monster AI is fully mappable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blue Prince
Room deck draws randomise each run's layout and available doors
Diablo II
Loot RNG and random maps drive the grind
Diablo II leans a little harder on optimization, though the gap is small.
Blue Prince
Learning room interactions and optimal routing to reach Room 46 despite variance
Diablo II
Builds, breakpoints, rune economy, magic-find routing are the game
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.