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
American trucking sim about long hauls and growth.

Optimization · Pure Optimization
Designing animal habitats that satisfy complex welfare systems while maintaining zoo profitability.
American Truck Simulator leans Optimization (Pure Optimization); Planet Zoo leans Optimization (Pure Optimization).
American Truck Simulator leans a little harder on execution, though the gap is small.
American Truck Simulator
Truck handling and trailer parking
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.
American Truck Simulator
No adaptive opponents
Planet Zoo
Animals and guests follow scripted need systems
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
American Truck Simulator
Traffic and weather variance
Planet Zoo
Animal welfare stats have minor stochastic variation
Planet Zoo leans a little harder on optimization, though the gap is small.
American Truck Simulator
Fleet, garages, route economics
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.