head to head
vs
Diablo IIIvsTerraria
Diablo III leans Optimization (Pure Optimization); Terraria leans Optimization (Pure Optimization).
Diablo IIITerraria
Axis by axis
Execution4 vs 4
Even - both lean on execution about the same.
Reads1 vs 0
Diablo III leans harder on reads: No meaningful adaptive opponent; co-op is cooperative
Variance5 vs 3
Diablo III leans harder on variance: Primal Ancient drops and set dungeon RNG drive the grind
Optimization9 vs 8
Diablo III leans harder on optimization: Set bonuses and paragon levelling are almost entirely solvable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.