head to head
EVE Online asks more than Cossacks 3, and the gap is variance.

Optimization · Pure Optimization
A large-scale real-time strategy game about massive army economies in the 17th century.

Optimization · Mind & Math
A player-driven economy and political simulation where optimal doctrine-building and reading human opponents decide outcomes.
Cossacks 3 leans Optimization (Pure Optimization); EVE Online leans Optimization (Mind & Math).
Cossacks 3 leans a little harder on execution, though the gap is small.
Cossacks 3
unit micromanagement under real-time pressure
EVE Online
Clicking modules demands little physical precision
EVE Online leans a little harder on reads, though the gap is small.
Cossacks 3
human opponents bluff builds and attacks
EVE Online
Player corporations and fleet FC decisions involve deep human prediction
EVE Online leans clearly harder on variance.
Cossacks 3
minor combat outcome randomness
EVE Online
Market prices and intel gaps are meaningful hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cossacks 3
massive army economy and tech optimization
EVE Online
Industry chains, fleet doctrines, and trade routes are deeply 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.