head to head
Stronghold Crusader II asks more than Portal, and the gap is reads.

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

Optimization · Pure Optimization
A medieval siege-warfare RTS emphasizing economy management and castle building.
Portal leans Optimization (Pure Optimization); Stronghold Crusader II 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.
Portal
Portal placement timing modest.
Stronghold Crusader II
unit micro and siege management require dexterity
Stronghold Crusader II leans clearly harder on reads.
Portal
No adversary modeling player.
Stronghold Crusader II
reading human opponents' siege timing and attacks
Stronghold Crusader II leans clearly harder on variance.
Portal
Deterministic chambers; no randomness.
Stronghold Crusader II
minor resource and combat RNG
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.
Stronghold Crusader II
economy and siege strategy dominate outcomes
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.