Building comparison
head to head
Planet ZoovsWorld of Goo
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.
Planet Zoo
Optimization · Pure Optimization
Designing animal habitats that satisfy complex welfare systems while maintaining zoo profitability.
World of Goo
Optimization · Pure Optimization
A physics puzzle game about building wobbly towers and bridges from living goo balls.
Planet Zoo leans Optimization (Pure Optimization); World of Goo leans Optimization (Pure Optimization).
Planet ZooWorld of Goo
Axis by axis
Execution3 vs 3
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Planet Zoo
Animal habitat and path construction demands deliberate precision
World of Goo
Placing goo balls needs only mild precision
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Planet Zoo
Animals and guests follow scripted need systems
World of Goo
No opponent exists
Variance2 vs 1
Planet Zoo leans a little harder on variance, though the gap is small.
Planet Zoo
Animal welfare stats have minor stochastic variation
World of Goo
Physics are visible and deterministic
Optimization8 vs 8
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Planet Zoo
Species welfare requirements and financial management are fully solvable
World of Goo
Tower structure and goo economy are solvable per level
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.