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
A first-person farming game about wrangling adorable slimes for plorts.

Optimization · Pure Optimization
A farm-life sim solved by season routing and profit optimization.
Slime Rancher leans Optimization (Pure Optimization); Stardew Valley leans Optimization (Pure Optimization).
Slime Rancher leans a little harder on execution, though the gap is small.
Slime Rancher
Vacuum aiming is gentle.
Stardew Valley
Trivial timing on fishing and combat
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Slime Rancher
Slimes follow scripted behaviors.
Stardew Valley
No adaptive opponent exists
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Slime Rancher
Plort prices and slime spawns vary.
Stardew Valley
Crop luck and geode RNG matter modestly
Stardew Valley leans a little harder on optimization, though the gap is small.
Slime Rancher
Ranch layout and economy reward planning.
Stardew Valley
Routing seasons, profit loops, and bundles dominates
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.