head to head
Fallout: New Vegas asks more than Golden Sun, 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 puzzle-RPG hybrid where Djinn combination theory and Psynergy routing trivializes its scripted encounters.
Fallout: New Vegas leans Optimization (Pure Optimization); Golden Sun leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Golden Sun
Fully turn-based Djinn-based combat; no timing demands
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Golden Sun
All bosses are scripted pattern fighters
Golden Sun leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Golden Sun
Djinn status randomness and summon charge timing add minor variance
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
Golden Sun
Djinn set theory, Psynergy routing, and summon sequencing 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.