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
Time-manipulation puzzles meet the series' signature weapon-upgrade gunplay.

Execution · Practiced Mastery
A twin-stick survival game testing base-layout economy and sustained horde aim.
Ratchet & Clank: A Crack in Time leans Optimization (Practiced Mastery); Yet Another Zombie Defense leans Execution (Practiced Mastery).
Yet Another Zombie Defense leans a little harder on execution, though the gap is small.
Ratchet & Clank: A Crack in Time
Hoverboot movement, aiming, and time-puzzle dexterity.
Yet Another Zombie Defense
Twin-stick aim under swelling night hordes carries survival
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ratchet & Clank: A Crack in Time
Entirely scripted single-player content.
Yet Another Zombie Defense
Zombies beeline mindlessly, never adapting
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ratchet & Clank: A Crack in Time
First-pass unknowns in puzzles and arenas.
Yet Another Zombie Defense
Wave composition varies modestly between runs
Ratchet & Clank: A Crack in Time leans a little harder on optimization, though the gap is small.
Ratchet & Clank: A Crack in Time
Clank's time puzzles and weapon economy are solvable systems.
Yet Another Zombie Defense
Turret placement and barricade economy decide how long you last
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.