head to head
Fallout: New Vegas asks more than The Missing: J.J. Macfield and the Island of Memories, and the gap is optimization.

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

Optimization · Pure Optimization
Body-altering puzzle platforming where each obstacle has an intended grim solution.
Fallout: New Vegas leans Optimization (Pure Optimization); The Missing: J.J. Macfield and the Island of Memories leans Optimization (Pure Optimization).
Fallout: New Vegas leans a little harder on execution, though the gap is small.
Fallout: New Vegas
Shooter inputs with VATS assist
The Missing: J.J. Macfield and the Island of Memories
Platforming is deliberately loose and forgiving
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
The Missing: J.J. Macfield and the Island of Memories
No adaptive opposition exists
Fallout: New Vegas leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
The Missing: J.J. Macfield and the Island of Memories
Hand-crafted puzzles, fixed every run
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
The Missing: J.J. Macfield and the Island of Memories
Using self-mutilation mechanics correctly per puzzle is the test
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.
full breakdown
Fallout: New Vegas →
full breakdown
The Missing: J.J. Macfield and the Island of Memories →