head to head
Neither is simply harder - they are hard in different places. Monkey Island 2: LeChuck's Revenge demands more variance; Portal demands more execution.

Optimization · Pure Optimization
A dense layered puzzle game demanding methodical inventory and dialogue optimization across four islands.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Monkey Island 2: LeChuck's Revenge leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Monkey Island 2: LeChuck's Revenge
Interface is point-and-click; no timing or precision required
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.
Monkey Island 2: LeChuck's Revenge
All puzzles are scripted; no opponent models the player
Portal
No adversary modeling player.
Monkey Island 2: LeChuck's Revenge leans clearly harder on variance.
Monkey Island 2: LeChuck's Revenge
Some item locations are initially hidden but deterministic
Portal
Deterministic chambers; no randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Monkey Island 2: LeChuck's Revenge
Multi-step puzzle chains reward systematic item and dialogue mapping
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.