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
Handheld SMT where smirk RNG stings but fusion planning and weakness knowledge carry you.
Dwarf Fortress leans Optimization (Pure Optimization); Shin Megami Tensei IV 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
Shin Megami Tensei IV
Menu combat with no execution ceiling.
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
Shin Megami Tensei IV
Demon negotiation is random personality 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
Shin Megami Tensei IV
Smirk procs and negotiation RNG swing fights hard.
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
Shin Megami Tensei IV
Fusion apps, weakness charts, and builds solve 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.