head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Pure Optimization
A systems-dense fortress survival game where mastery of deeply randomized simulation rules determines whether your dwarves live or die.

Optimization · Pure Optimization
An auto-battling deckbuilder about building a loop to defeat the Lich.
Dwarf Fortress leans Optimization (Pure Optimization); Loop Hero 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.
Dwarf Fortress
Menu-driven with no physical performance ceiling whatsoever
Loop Hero
Autobattler, almost no inputs.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dwarf Fortress
Goblins and megabeasts follow scripted aggression; no player modeling
Loop Hero
Enemies follow scripts.
Dwarf Fortress leans a little harder on variance, though the gap is small.
Dwarf Fortress
World generation, artifact rolls, and siege timing carry deep randomness
Loop Hero
Card draws and loot drops randomize.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dwarf Fortress
Military, food chains, and fortress layout reward encyclopedic systems mastery
Loop Hero
Deck and tile placement reward deep optimization.
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.