head to head
Aragami 2 asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
Routing stealth kills through static guard circuits while managing a learnable skill and stamina economy.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Aragami 2 leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Aragami 2
Stamina-gated combat and ledge grabs add modest execution demands
Portal
Portal placement timing modest.
Aragami 2 leans a little harder on reads, though the gap is small.
Aragami 2
Enemy AI patrols on fixed schedules without adapting to tactic history
Portal
No adversary modeling player.
Aragami 2 leans clearly harder on variance.
Aragami 2
Level layouts are static; repeated runs compound knowledge cleanly
Portal
Deterministic chambers; no randomness.
Portal leans a little harder on optimization, though the gap is small.
Aragami 2
Skill tree investment and patrol routing are the lead system
Portal
Pure puzzle-solving optimization.
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.