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.

Execution · Practiced Mastery
A compact, elegant metroidvania with crisp leaf-blade combat and punishing bosses.

Execution · Practiced Mastery
Third-person action where Captain Titus chainswords through ork hordes without a cover system.
Momodora: Reverie Under the Moonlight leans Execution (Practiced Mastery); Warhammer 40,000: Space Marine leans Execution (Practiced Mastery).
Momodora: Reverie Under the Moonlight leans a little harder on execution, though the gap is small.
Momodora: Reverie Under the Moonlight
Tight dodge-roll combat and demanding bosses
Warhammer 40,000: Space Marine
Melee-shooting flow and execution timing carry combat
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Momodora: Reverie Under the Moonlight
All bosses run fixed movesets
Warhammer 40,000: Space Marine
Ork hordes follow scripted aggression
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Momodora: Reverie Under the Moonlight
Compact fixed world, few unknowns
Warhammer 40,000: Space Marine
Encounters are fixed and predictable
Momodora: Reverie Under the Moonlight leans a little harder on optimization, though the gap is small.
Momodora: Reverie Under the Moonlight
Learning boss patterns and item routing
Warhammer 40,000: Space Marine
Weapon choice and fury management are simple to learn
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.