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

Optimization · Pure Optimization
A forgiving moral-choice RPG where build and economy decisions outweigh combat skill.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Fable Anniversary leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans a little harder on execution, though the gap is small.
Fable Anniversary
Forgiving combat across melee, ranged and magic
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.
Fable Anniversary
Bandits and balverines follow fixed scripts
Portal
No adversary modeling player.
Fable Anniversary leans a little harder on variance, though the gap is small.
Fable Anniversary
Albion is handcrafted and fully learnable
Portal
Deterministic chambers; no randomness.
Portal leans clearly harder on optimization.
Fable Anniversary
Alignment, build and economy choices are the systems layer
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.