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

Optimization · Pure Optimization
Beautiful 19th-century city-builder ruled by production ratios.

Optimization · Pure Optimization
Solving an interstellar logistics and power-engineering puzzle to construct a Dyson Sphere.
Anno 1800 leans Optimization (Pure Optimization); Dyson Sphere Program 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.
Anno 1800
pausable, no twitch
Dyson Sphere Program
All input is construction clicks with no combat ceiling
Anno 1800 leans a little harder on reads, though the gap is small.
Anno 1800
AI scripted, not adaptive
Dyson Sphere Program
No adversary exists in the default game mode
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Anno 1800
minor trade fluctuations
Dyson Sphere Program
Star system layouts vary per seed but are fully mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Anno 1800
supply chains and ratios are the game
Dyson Sphere Program
Interstellar logistics and sphere construction are a pure engineering optimisation problem
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.