head to head
vs
Battle CityvsHalf-Life: Alyx
Battle City leans Execution (Pure Mechanics); Half-Life: Alyx leans Execution (Pure Mechanics).
Battle CityHalf-Life: Alyx
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads0 vs 1
Half-Life: Alyx leans harder on reads: Combine and headcrabs scripted.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization4 vs 3
Battle City leans harder on optimization: Base-defense positioning and brick management have known best answers
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.