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
An open sandbox where mastering crafting and building systems dominates over any physical skill.

Optimization · Pure Optimization
Designing animal habitats that satisfy complex welfare systems while maintaining zoo profitability.
Minecraft: Java Edition leans Optimization (Pure Optimization); Planet Zoo leans Optimization (Pure Optimization).
Planet Zoo leans a little harder on execution, though the gap is small.
Minecraft: Java Edition
barely relevant, building/PvP negligible for most
Planet Zoo
Animal habitat and path construction demands deliberate precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Minecraft: Java Edition
no adaptive opponent, sandbox play
Planet Zoo
Animals and guests follow scripted need systems
Minecraft: Java Edition leans a little harder on variance, though the gap is small.
Minecraft: Java Edition
world gen and mob spawns randomized
Planet Zoo
Animal welfare stats have minor stochastic variation
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Minecraft: Java Edition
redstone, base/resource routing solvable systems
Planet Zoo
Species welfare requirements and financial management are fully solvable
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.