head to head
vs
Half-Life: AlyxvsTouch the Dead
Half-Life: Alyx leans Execution (Pure Mechanics); Touch the Dead leans Execution (Pure Mechanics).
Half-Life: AlyxTouch the Dead
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads1 vs 0
Half-Life: Alyx leans harder on reads: Combine and headcrabs scripted.
Variance2 vs 3
Touch the Dead leans harder on variance: Zombie spawn timing adds light unpredictability
Optimization3 vs 3
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.