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
A match-three game testing efficient board clearing to fund city-building.

Optimization · Pure Optimization
Side-on turn-based tactics where you manually aim ricocheting bullets for a steambot pirate crew.
Cradle of Rome leans Optimization (Pure Optimization); SteamWorld Heist leans Optimization (Pure Optimization).
SteamWorld Heist leans a little harder on execution, though the gap is small.
Cradle of Rome
Light click-speed under timers, never decisive
SteamWorld Heist
Manual aim and ricochet shots reward steady hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cradle of Rome
Solo match-three, no opponent to model
SteamWorld Heist
Enemy bots follow fixed behaviors
Cradle of Rome leans a little harder on variance, though the gap is small.
Cradle of Rome
Board tile drops are random per move
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.
Cradle of Rome
Planning matches to collect resources builds the city
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.