head to head
vs
The First DescendantvsZero Sievert
The First Descendant leans Optimization (Practiced Mastery); Zero Sievert leans Variance (Systems & Chaos).
The First DescendantZero Sievert
Axis by axis
Execution6 vs 5
The First Descendant leans harder on execution: Colossus boss fights and intercept missions require dodge timing and aim
Reads1 vs 0
The First Descendant leans harder on reads: PvE co-op throughout with no meaningful adaptive opponent
Variance6 vs 7
Zero Sievert leans harder on variance: Procedural maps, loot rolls, and unseen ambushes
Optimization8 vs 7
The First Descendant leans harder on optimization: Module builds and Descendant loadouts are extensively theory-crafted
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.