head to head
Neither is simply harder - they are hard in different places. Arkanoid: Doh It Again demands more variance; DOOM (2016) demands more optimization.

Execution · Pure Mechanics
A reflex test of paddle precision against accelerating ball physics.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
Arkanoid: Doh It Again leans Execution (Pure Mechanics); DOOM (2016) leans Execution (Pure Mechanics).
DOOM (2016) leans a little harder on execution, though the gap is small.
Arkanoid: Doh It Again
Paddle precision under accelerating ball speed is everything
DOOM (2016)
Aim, movement, glory-kill timing all peak.
DOOM (2016) leans a little harder on reads, though the gap is small.
Arkanoid: Doh It Again
No opponent - bricks do not adapt
DOOM (2016)
Demons scripted attack patterns.
Arkanoid: Doh It Again leans clearly harder on variance.
Arkanoid: Doh It Again
Power-up drops and ball angles add bounded randomness
DOOM (2016)
Minimal encounter randomness.
DOOM (2016) leans clearly harder on optimization.
Arkanoid: Doh It Again
Brick-clearing order and power-up choices have known answers
DOOM (2016)
Rune and weapon mod picks meaningful.
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.