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 · Practiced Mastery
Bethesda space RPG with ship and outpost systems.

Optimization · Pure Optimization
Side-on turn-based tactics where you manually aim ricocheting bullets for a steambot pirate crew.
Starfield leans Optimization (Practiced Mastery); SteamWorld Heist leans Optimization (Pure Optimization).
Starfield leans a little harder on execution, though the gap is small.
Starfield
Shooter and piloting inputs
SteamWorld Heist
Manual aim and ricochet shots reward steady hands
Starfield leans a little harder on reads, though the gap is small.
Starfield
Scripted NPC AI patterns
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.
Starfield
Procedural planets, loot variance
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.
Starfield
Ship building, outpost, perk routing
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.