head to head
Neither is simply harder - they are hard in different places. Portal demands more execution; True Fear: Forsaken Souls Part 3 demands more variance.

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

Optimization · Pure Optimization
A point-and-click horror finale built on solving fixed puzzles and codes.
Portal leans Optimization (Pure Optimization); True Fear: Forsaken Souls Part 3 leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Portal
Portal placement timing modest.
True Fear: Forsaken Souls Part 3
Point-and-click, no reflex demands
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.
True Fear: Forsaken Souls Part 3
Story scripted, no adaptive adversary
True Fear: Forsaken Souls Part 3 leans clearly harder on variance.
Portal
Deterministic chambers; no randomness.
True Fear: Forsaken Souls Part 3
Fixed puzzles, minimal randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Portal
Pure puzzle-solving optimization.
True Fear: Forsaken Souls Part 3
Solving puzzles and inventory chains drives progress
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.