head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
The beloved theme park builder where you design coasters and manage every detail of a growing park.

Optimization · Pure Optimization
Pure factory-layout optimization with no pressure, randomness or opponent.
RollerCoaster Tycoon leans Optimization (Pure Optimization); Shapez leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
RollerCoaster Tycoon
Mouse-driven building with no time pressure
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.
RollerCoaster Tycoon
Guests are simple, fully mappable simulations
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.
RollerCoaster Tycoon
Guest spawns and breakdowns barely matter
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.
RollerCoaster Tycoon
Park layout, pricing, and coaster stats are solvable systems
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.