head to head
SoulCalibur III asks more than Nidhogg, and the gap is optimization.

Reads · Competitive PvP
Minimalist fencing duel that is almost entirely about out-guessing one human.

Execution · Competitive PvP
Weapon-based dueling testing spacing execution and mixup prediction against humans.
Nidhogg leans Reads (Competitive PvP); SoulCalibur III leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Nidhogg
Sword-height changes and dive-kicks need quick hands
SoulCalibur III
Spacing, movement and just-frame timing demand real hands
Nidhogg leans a little harder on reads, though the gap is small.
Nidhogg
Pure human duels of feints and conditioning
SoulCalibur III
Versus humans, conditioning and throw-mixup guessing decides rounds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Nidhogg
Symmetric deterministic arenas
SoulCalibur III
Deterministic combat with nothing hidden
SoulCalibur III leans clearly harder on optimization.
Nidhogg
Small toolkit, little to solve beyond fundamentals
SoulCalibur III
Frame data, matchup study and stage knowledge run deep
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.