head to head
Portal asks more than INDIKA, and the gap is optimization.

Optimization · Pure Optimization
Surreal narrative adventure following a nun arguing with the devil inside her.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
INDIKA leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
INDIKA
Light platforming and chase sequences
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.
INDIKA
No adaptive opposition
Portal
No adversary modeling player.
INDIKA leans a little harder on variance, though the gap is small.
INDIKA
Story beats surprise once
Portal
Deterministic chambers; no randomness.
Portal leans clearly harder on optimization.
INDIKA
Environmental puzzles drive progress
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.