head to head
Neither is simply harder - they are hard in different places. Lorelei and the Laser Eyes demands more variance; Portal 2 demands more execution.

Optimization · Pure Optimization
An austere puzzle labyrinth where every room presents a closed logical system that must be fully solved.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Lorelei and the Laser Eyes leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans clearly harder on execution.
Lorelei and the Laser Eyes
Minimal motor demand; all puzzles are cognitive
Portal 2
Portal placement requires some precision but timing is lenient.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Lorelei and the Laser Eyes
Surreal manor setting has no adaptive opponent
Portal 2
No opponent; puzzles are static.
Lorelei and the Laser Eyes leans clearly harder on variance.
Lorelei and the Laser Eyes
Some hidden room states and obscured clues require discovery
Portal 2
Puzzles are deterministic with no randomness.
Lorelei and the Laser Eyes leans a little harder on optimization, though the gap is small.
Lorelei and the Laser Eyes
Every puzzle is a precisely designed closed logic problem with exactly one valid solution
Portal 2
Solving the puzzle's logic IS the entire game.
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.