head to head
Fallout: New Vegas asks more than Monument Valley III, 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 serene optical-illusion puzzle game about guiding a figure through impossible architecture.
Fallout: New Vegas leans Optimization (Pure Optimization); Monument Valley III leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Monument Valley III
No physical skill, gentle tap-based interaction.
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Monument Valley III
No opponent, solo optical-illusion puzzles.
Fallout: New Vegas leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Monument Valley III
Minimal randomness in puzzle design.
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Monument Valley III
Spatial puzzle logic is fully solvable with correct sequence.
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.