head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

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

Optimization · Pure Optimization
A prequel horror story built on mirror-world traversal and disposable melee weapons.
Fallout: New Vegas leans Optimization (Pure Optimization); Silent Hill: Origins 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
Silent Hill: Origins
Breakable-weapon melee asks little precision
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Silent Hill: Origins
Enemies are scripted patterns
Silent Hill: Origins leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Silent Hill: Origins
Hidden layouts and mirror-world switches surprise once
Fallout: New Vegas leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Silent Hill: Origins
Weapon inventory and puzzle routes converge quickly
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.