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 · Practiced Mastery
A tap-to-shoot defense game balancing aim with weapon upgrade choices.

Execution · Practiced Mastery
Cinematic survival action where scavenged resources and stealth carry you through the apocalypse.
Swamp Attack leans Optimization (Practiced Mastery); The Last of Us leans Execution (Practiced Mastery).
The Last of Us leans a little harder on execution, though the gap is small.
Swamp Attack
Tap-aiming at incoming enemies needs modest timing
The Last of Us
Aim, stealth timing, and scarce-ammo combat
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Swamp Attack
Waves are scripted, no adaptive opponent
The Last of Us
Enemy AI searches but follows mappable routines
Swamp Attack leans a little harder on variance, though the gap is small.
Swamp Attack
Enemy spawn mix adds some randomness across waves
The Last of Us
Encounter layouts unknown first time only
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Swamp Attack
Weapon and upgrade choices shape wave survival
The Last of Us
Resource crafting and encounter routing
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.