head to head
Euro Truck Simulator 2vsKerbal Space Program
Euro Truck Simulator 2 leans Optimization (Pure Optimization); Kerbal Space Program leans Optimization (Pure Optimization).
Euro Truck Simulator 2Kerbal Space Program
Axis by axis
Execution4 vs 5
Kerbal Space Program leans harder on execution: Manual piloting, docking precision
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization7 vs 10
Kerbal Space Program leans harder on optimization: Rocket design, delta-v budget, mission planning
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

