head to head
Kerbal Space Program asks more than Outer Wilds, and the gap is execution.

Optimization · Pure Optimization
Rocket engineering sandbox about orbital mechanics.

Optimization · Pure Optimization
A knowledge-based mystery solved by mapping a deterministic solar system.
Kerbal Space Program leans Optimization (Pure Optimization); Outer Wilds leans Optimization (Pure Optimization).
Kerbal Space Program leans clearly harder on execution.
Kerbal Space Program
Manual piloting, docking precision
Outer Wilds
Light piloting, mostly forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kerbal Space Program
No adaptive opponents
Outer Wilds
World is fixed; nothing adapts to you
Kerbal Space Program leans a little harder on variance, though the gap is small.
Kerbal Space Program
Light reentry and physics variance
Outer Wilds
Loop is deterministic once understood
Kerbal Space Program leans a little harder on optimization, though the gap is small.
Kerbal Space Program
Rocket design, delta-v budget, mission planning
Outer Wilds
Pure knowledge puzzle - solve the system
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.