head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Pure Optimization
Physics bridge-builder where cheaper, weirder solutions are the real game.

Optimization · Pure Optimization
A classic management sim about building profitable, animal-friendly zoo exhibits.
Poly Bridge 2 leans Optimization (Pure Optimization); Zoo Tycoon leans Optimization (Pure Optimization).
Poly Bridge 2 leans a little harder on execution, though the gap is small.
Poly Bridge 2
Mouse-driven building has no dexterity pressure
Zoo Tycoon
Mouse-driven building, no time pressure
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
Zoo Tycoon
No opponents
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Poly Bridge 2
Deterministic physics; outcomes are fully replayable
Zoo Tycoon
Animal needs are deterministic once learned
Poly Bridge 2 leans a little harder on optimization, though the gap is small.
Poly Bridge 2
Budget-constrained engineering is a pure optimization problem
Zoo Tycoon
Exhibit suitability, finances, guest flow are solvable systems
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.