head to head
vs
SpaceplanvsSpiritfarer
Spaceplan leans Optimization (Pure Optimization); Spiritfarer leans Optimization (Pure Optimization).
SpaceplanSpiritfarer
Axis by axis
Execution1 vs 2
Spiritfarer leans harder on execution: Platforming is light and forgiving.
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization6 vs 5
Spaceplan leans harder on optimization: Generator ratios and upgrade order pace the story
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.