Building comparison
head to head
FalloutvsPortal
Neither is simply harder - they are hard in different places. Fallout demands more variance; Portal demands more execution.
Fallout
Optimization · Pure Optimization
The original post-apocalyptic CRPG where character builds solve the wasteland.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Fallout leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
FalloutPortal
Axis by axis
Execution1 vs 4
Portal leans clearly harder on execution.
Fallout
Turn-based, no dexterity
Portal
Portal placement timing modest.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout
No adaptive opposition
Portal
No adversary modeling player.
Variance4 vs 0
Fallout leans clearly harder on variance.
Fallout
To-hit rolls and random encounters
Portal
Deterministic chambers; no randomness.
Optimization8 vs 8
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout
SPECIAL builds and quest routing are deeply solvable
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.