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 genre-defining cartoon tower defense with crunchy upgrades and fixed waves begging for perfect solutions.

Optimization · Pure Optimization
Pure factory-layout optimization with no pressure, randomness or opponent.
Kingdom Rush leans Optimization (Pure Optimization); Shapez leans Optimization (Pure Optimization).
Kingdom Rush leans a little harder on execution, though the gap is small.
Kingdom Rush
Light micro of hero and rally points
Shapez
Placing belts has no time pressure at all
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdom Rush
Wave compositions are fixed and previewable
Shapez
No adversary exists anywhere
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdom Rush
Almost fully deterministic waves
Shapez
The infinite map's shapes are mappable immediately
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdom Rush
Tower placement and upgrade routes are solvable
Shapez
Designing efficient cutting and merging factories IS the game
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.