head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Darker Prime sequel built on mirrored light and dark world traversal.

Optimization · Practiced Mastery
Co-op survival horror testing resource routing and scripted puzzle knowledge.
Metroid Prime 2: Echoes leans Optimization (Practiced Mastery); ObsCure: The Aftermath leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Prime 2: Echoes
lock-on combat, harsher but still forgiving aim
ObsCure: The Aftermath
Clunky combat aim matters but forgivingly
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Prime 2: Echoes
Ing follow scripted patterns
ObsCure: The Aftermath
Monsters follow scripted spawns and behaviours
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Prime 2: Echoes
dark-world hazards surprise until learned
ObsCure: The Aftermath
Scares and items are fixed once known
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Prime 2: Echoes
dual-world routing and key hunts reward planning
ObsCure: The Aftermath
Ammo conservation, puzzles and character-ability routing carry runs
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.