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

Optimization · Pure Optimization
A physics-puzzle horror game where methodical object manipulation and route knowledge reduce all tension.

Optimization · Pure Optimization
A first-person farming game about wrangling adorable slimes for plorts.
Penumbra: Overture leans Optimization (Pure Optimization); Slime Rancher 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.
Penumbra: Overture
Physics-based interaction and basic evasion; low precision demand
Slime Rancher
Vacuum aiming is gentle.
Penumbra: Overture leans a little harder on reads, though the gap is small.
Penumbra: Overture
Dogs follow scripted patrol and alarm states
Slime Rancher
Slimes follow scripted behaviors.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Overture
Some item placements are hidden on first run
Slime Rancher
Plort prices and slime spawns vary.
Slime Rancher leans a little harder on optimization, though the gap is small.
Penumbra: Overture
Puzzle solutions and safe-zone routing are fully learnable
Slime Rancher
Ranch layout and economy reward planning.
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.