head to head
vs
SpelunkyvsZiggurat 2
Spelunky leans Execution (Twitch Chaos); Ziggurat 2 leans Execution (Twitch Chaos).
SpelunkyZiggurat 2
Axis by axis
Execution8 vs 8
Even - both lean on execution about the same.
Reads1 vs 1
Even - both lean on reads about the same.
Variance7 vs 6
Spelunky leans harder on variance: Procedural caves and item rolls shape every run.
Optimization6 vs 5
Spelunky leans harder on optimization: Hell route and shortcuts reward solved knowledge.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.