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

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

Execution · Pure Mechanics
A high-intensity wave shooter testing sustained accuracy and stamina against unrelenting scripted enemy hordes.
DOOM (2016) leans Execution (Pure Mechanics); Serious Sam 3: BFE leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Serious Sam 3: BFE
Iron-sights mechanics add precision demand on top of classic crowd control
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Serious Sam 3: BFE
All enemies follow scripted wave patterns throughout the campaign
Serious Sam 3: BFE leans a little harder on variance, though the gap is small.
DOOM (2016)
Minimal encounter randomness.
Serious Sam 3: BFE
Encounter layout is consistent and fully learnable after one pass
DOOM (2016) leans a little harder on optimization, though the gap is small.
DOOM (2016)
Rune and weapon mod picks meaningful.
Serious Sam 3: BFE
Weapon economy and grenade usage offer a thin planning 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.