head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Optimization · Systems & Chaos
Roguelite city-builder where draws drive each settlement.

Optimization · Systems & Chaos
A colony sim where the storyteller's randomness tests your designed defenses.
Against the Storm leans Optimization (Systems & Chaos); RimWorld leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Against the Storm
no twitch demand
RimWorld
Pausable, no input precision required.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Against the Storm
no adaptive opponent
RimWorld
Storyteller AI is randomised, not adaptive to you.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Against the Storm
randomized buildings, orders, glades
RimWorld
Raids, weather, and pawn traits are heavily random.
RimWorld leans a little harder on optimization, though the gap is small.
Against the Storm
production chains, order routing solvable
RimWorld
Colony layout, work priorities, and defenses solvable.
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.