head to head
Pikmin 3 Deluxe asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
A real-time strategy-puzzle game about managing pikmin squads efficiently against the clock.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Pikmin 3 Deluxe 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.
Pikmin 3 Deluxe
multitasking pikmin management under time pressure
Portal
Portal placement timing modest.
Pikmin 3 Deluxe leans a little harder on reads, though the gap is small.
Pikmin 3 Deluxe
enemy AI scripted, not adaptive
Portal
No adversary modeling player.
Pikmin 3 Deluxe leans clearly harder on variance.
Pikmin 3 Deluxe
hazard and enemy placement randomness minor
Portal
Deterministic chambers; no randomness.
Portal leans a little harder on optimization, though the gap is small.
Pikmin 3 Deluxe
day-planning and resource routing dominate
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.