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

Optimization · Pure Optimization
Hoenn's definitive version, crowned by the strategy-heavy Battle Frontier.

Optimization · Pure Optimization
A classic management sim about building profitable, animal-friendly zoo exhibits.
Pokémon Emerald 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.
Pokémon Emerald
Turn-based commands only
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.
Pokémon Emerald
Battle Frontier AI is fixed-policy
Zoo Tycoon
No opponents
Pokémon Emerald leans a little harder on variance, though the gap is small.
Pokémon Emerald
Encounter RNG and Frontier hax
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.
Pokémon Emerald
EVs, movesets, and Frontier strategy run deep
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.