head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A nonviolent, cozy city builder about rebuilding civilization across hex-tile islands and planets.

Optimization · Pure Optimization
A classic management sim about building profitable, animal-friendly zoo exhibits.
Before We Leave leans Optimization (Pure Optimization); Zoo Tycoon leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Before We Leave
Relaxed pace; no combat or timing 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.
Before We Leave
No opponents at all; space whales are scripted hazards.
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.
Before We Leave
Hex planet layouts vary slightly between runs.
Zoo Tycoon
Animal needs are deterministic once learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Before We Leave
Supply chains across hex islands and planets are the entire test.
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.