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
Tests naval economy management and fleet tactics against scripted AI nations.

Optimization · Pure Optimization
Side-on turn-based tactics where you manually aim ricocheting bullets for a steambot pirate crew.
Corsairs: Conquest at Sea leans Optimization (Pure Optimization); SteamWorld Heist leans Optimization (Pure Optimization).
SteamWorld Heist leans a little harder on execution, though the gap is small.
Corsairs: Conquest at Sea
Real-time ship handling rewards modest dexterity
SteamWorld Heist
Manual aim and ricochet shots reward steady hands
Corsairs: Conquest at Sea leans a little harder on reads, though the gap is small.
Corsairs: Conquest at Sea
Enemy fleets follow predictable AI behaviour
SteamWorld Heist
Enemy bots follow fixed behaviors
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Corsairs: Conquest at Sea
Wind and unexplored waters add scripted-unknown noise
SteamWorld Heist
Procedural ship layouts and loot drops
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Corsairs: Conquest at Sea
Fleet economy, boarding decisions and port strategy dominate
SteamWorld Heist
Crew builds, weapon picks, and turn routing carry runs
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.