head to head
Fallout: New Vegas asks more than SimCity 3000 Unlimited, and the gap is execution.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.

Optimization · Pure Optimization
A city builder testing long-horizon zoning, budget and infrastructure optimization.
Fallout: New Vegas leans Optimization (Pure Optimization); SimCity 3000 Unlimited leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
SimCity 3000 Unlimited
Menu clicks at a leisurely pace
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
SimCity 3000 Unlimited
No opponent, only simulated citizens
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Some loot and crit RNG
SimCity 3000 Unlimited
Disasters add occasional scripted randomness
SimCity 3000 Unlimited leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
SimCity 3000 Unlimited
Zoning, budgets and infrastructure balance are entirely solvable
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.