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
The original stealth assassination sim where each mission is a clockwork puzzle.

Optimization · Pure Optimization
Solving guard patrols and survival systems through planned stealth routing.
Hitman: Codename 47 leans Optimization (Pure Optimization); Metal Gear Solid Delta: Snake Eater leans Optimization (Pure Optimization).
Metal Gear Solid Delta: Snake Eater leans a little harder on execution, though the gap is small.
Hitman: Codename 47
Stiff aiming and unforgiving stealth movement
Metal Gear Solid Delta: Snake Eater
Stealth movement and CQC need care, not twitch mastery
Metal Gear Solid Delta: Snake Eater leans a little harder on reads, though the gap is small.
Hitman: Codename 47
Guards follow fixed scripted patrols
Metal Gear Solid Delta: Snake Eater
Guards follow vision-cone scripts, not adaptive minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hitman: Codename 47
First-run guard routes and triggers are unknown
Metal Gear Solid Delta: Snake Eater
Patrol routes unknown only until observed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Hitman: Codename 47
Learning the level clockwork is the whole game
Metal Gear Solid Delta: Snake Eater
Camo, routing, food and boss knowledge solve every encounter
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.