head to head
Neither is simply harder - they are hard in different places. Portal demands more execution; This Is the Police demands more variance.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.

Optimization · Pure Optimization
A noir management game where a corrupt retiring police chief juggles dispatches, mobsters, and money.
Portal leans Optimization (Pure Optimization); This Is the Police leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Portal
Portal placement timing modest.
This Is the Police
Menu-driven dispatching, no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal
No adversary modeling player.
This Is the Police
Mob and city events are scripted
This Is the Police leans clearly harder on variance.
Portal
Deterministic chambers; no randomness.
This Is the Police
Call outcomes and officer rolls are uncertain
Portal leans a little harder on optimization, though the gap is small.
Portal
Pure puzzle-solving optimization.
This Is the Police
Staffing, dispatch triage, and cash management solvable
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.