head to head
Fallout: New Vegas asks more than Zeus: Master of Olympus, 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 classic Greek city builder of housing blocks, gods, and mythic monsters.
Fallout: New Vegas leans Optimization (Pure Optimization); Zeus: Master of Olympus leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Zeus: Master of Olympus
Paused-friendly mouse planning
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Zeus: Master of Olympus
Rival cities act on schedules
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
Zeus: Master of Olympus
Monster attacks and god visits semi-random
Zeus: Master of Olympus leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Zeus: Master of Olympus
Walker logic, housing blocks, and economy are deeply 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.