Building comparison
head to head
BraidvsPortal 2
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Braid
Optimization · Pure Optimization
A platformer puzzle game built around deducing and exploiting each world's unique time-manipulation rule.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Braid leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
BraidPortal 2
Axis by axis
Execution4 vs 3
Braid leans a little harder on execution, though the gap is small.
Braid
Precise jumps and time-rewind timing are load-bearing
Portal 2
Portal placement requires some precision but timing is lenient.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Braid
No opponent; solo platforming puzzle
Portal 2
No opponent; puzzles are static.
Variance0 vs 0
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Braid
All puzzles are deterministic and hand-crafted
Portal 2
Puzzles are deterministic with no randomness.
Optimization9 vs 9
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Braid
Understanding each world's time-manipulation rule and its exact solution is the game
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.