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
The original European trucking sim of long hauls and tidy deliveries.

Optimization · Pure Optimization
Open-city LEGO cop comedy stuffed with disguise-gated collectibles.
Euro Truck Simulator leans Optimization (Practiced Mastery); LEGO City Undercover leans Optimization (Pure Optimization).
Euro Truck Simulator leans a little harder on execution, though the gap is small.
Euro Truck Simulator
Basic truck handling and parking
LEGO City Undercover
Easygoing chases, brawls, and platforming
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Euro Truck Simulator
No adaptive opposition
LEGO City Undercover
Scripted crooks
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Euro Truck Simulator
Minor traffic variation
LEGO City Undercover
Open city fixed once explored
LEGO City Undercover leans a little harder on optimization, though the gap is small.
Euro Truck Simulator
Delivery routes and truck upgrades
LEGO City Undercover
Disguise-ability gating across a collectible-stuffed city
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.