head to head
Fallout: New Vegas asks more than Shining Force 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
Saturn tactical RPG trilogy whose three scenarios interlock around promotions and party synergy.
Fallout: New Vegas leans Optimization (Pure Optimization); Shining Force III leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Shining Force III
Turn-based grid battles only
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Shining Force III
Enemy AI follows fixed aggression patterns
Shining Force III leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Shining Force III
Crit rolls and counterattack chance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Shining Force III
Promotion timing, friendship system, and positioning are masterable
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.