head to head
vs
Nubby's Number FactoryvsX-COM: UFO Defense
Nubby's Number Factory leans Variance (Systems & Chaos); X-COM: UFO Defense leans Optimization (Systems & Chaos).
Nubby's Number FactoryX-COM: UFO Defense
Axis by axis
Execution1 vs 1
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance7 vs 6
Nubby's Number Factory leans harder on variance: Peg bounces are physics RNG every launch
Optimization7 vs 8
X-COM: UFO Defense leans harder on optimization: Base economy, research order, and tactical doctrine are masterable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.