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 fast shooter that rewards learning enemy ambush patterns and hunting interactable environments for secrets and shortcuts.

Execution · Practiced Mastery
A sword-and-gun action shooter rewarding combo timing mastery and careful upgrade investment against scripted demon hordes.
Duke Nukem 3D leans Execution (Practiced Mastery); Shadow Warrior (2013) leans Execution (Practiced Mastery).
Shadow Warrior (2013) leans a little harder on execution, though the gap is small.
Duke Nukem 3D
Fast movement and precise shooting across interactive environments
Shadow Warrior (2013)
Sword combos and gunplay require precise timing and input chaining
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Duke Nukem 3D
All enemies follow scripted AI; no adaptive opponent present
Shadow Warrior (2013)
All enemies are scripted demons with fixed attack patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Duke Nukem 3D
Enemy ambushes and secret placement are hidden on first run
Shadow Warrior (2013)
Upgrade drop randomness introduces mild run-to-run variance
Shadow Warrior (2013) leans a little harder on optimization, though the gap is small.
Duke Nukem 3D
Level structure and secret routing reward systematic exploration
Shadow Warrior (2013)
Ki power and upgrade tree investment form a meaningful build layer
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.