Building comparison
head to head
Poly Bridge 2vsPortal 2
Portal 2 asks more than Poly Bridge 2, and the gap is execution.
Poly Bridge 2
Optimization · Pure Optimization
Physics bridge-builder where cheaper, weirder solutions are the real game.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Poly Bridge 2 leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Poly Bridge 2Portal 2
Axis by axis
Execution1 vs 3
Portal 2 leans clearly harder on execution.
Poly Bridge 2
Mouse-driven building has no dexterity pressure
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.
Poly Bridge 2
No adversary present
Portal 2
No opponent; puzzles are static.
Variance1 vs 0
Poly Bridge 2 leans a little harder on variance, though the gap is small.
Poly Bridge 2
Deterministic physics; outcomes are fully replayable
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.
Poly Bridge 2
Budget-constrained engineering is a pure optimization problem
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.