head to head
Gothic II asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
Sequel RPG where scarce learning points make build planning brutally consequential.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Gothic II 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.
Gothic II
Directional melee timing against tough fauna
Portal
Portal placement timing modest.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Gothic II
No adaptive opposition
Portal
No adversary modeling player.
Gothic II leans clearly harder on variance.
Gothic II
First-run surprises until the island is mapped
Portal
Deterministic chambers; no randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gothic II
Strict learning-point economy rewards ruthless planning
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.