head to head
Neither is simply harder - they are hard in different places. DOOM (2016) demands more optimization; Moorhuhn 2: Die Jagd Geht Weiter demands more variance.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.

Execution · Pure Mechanics
A lighthearted shooting-gallery game about reflexively gunning down randomly appearing chickens.
DOOM (2016) leans Execution (Pure Mechanics); Moorhuhn 2: Die Jagd Geht Weiter leans Execution (Pure Mechanics).
DOOM (2016) leans clearly harder on execution.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Moorhuhn 2: Die Jagd Geht Weiter
precise aiming and shooting reflexes
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Moorhuhn 2: Die Jagd Geht Weiter
no opponent, solo shooting gallery
Moorhuhn 2: Die Jagd Geht Weiter leans clearly harder on variance.
DOOM (2016)
Minimal encounter randomness.
Moorhuhn 2: Die Jagd Geht Weiter
chicken spawn pattern randomness
DOOM (2016) leans clearly harder on optimization.
DOOM (2016)
Rune and weapon mod picks meaningful.
Moorhuhn 2: Die Jagd Geht Weiter
minimal, mostly reflexive scoring
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.