head to head
Neither is simply harder - they are hard in different places. DOOM (2016) demands more optimization; Temple Run demands more variance.

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

Execution · Pure Mechanics
The defining mobile endless runner of swiping past cliffs, roots, and flames at increasing speed.
DOOM (2016) leans Execution (Pure Mechanics); Temple Run leans Execution (Pure Mechanics).
DOOM (2016) leans a little harder on execution, though the gap is small.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Temple Run
Swipe reactions at ever-rising speed
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Temple Run
The demon monkeys never adapt
Temple Run leans clearly harder on variance.
DOOM (2016)
Minimal encounter randomness.
Temple Run
Procedural track segments each run
DOOM (2016) leans clearly harder on optimization.
DOOM (2016)
Rune and weapon mod picks meaningful.
Temple Run
Powerup upgrades and segment recognition help
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.