head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
A loud, high-endurance test of accurate crowd control against relentless scripted enemy swarms in open arenas.

Execution · Pure Mechanics
Tests twin-stick reflexes and threat triage under relentless arcade pressure.
Serious Sam: The First Encounter leans Execution (Pure Mechanics); Super Stardust Ultra leans Execution (Pure Mechanics).
Super Stardust Ultra leans a little harder on execution, though the gap is small.
Serious Sam: The First Encounter
Sustained accurate fire against enormous enemy hordes demands constant aim
Super Stardust Ultra
Twin-stick dodging through dense asteroid fields is everything
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Serious Sam: The First Encounter
All enemies are scripted and follow fixed rush patterns
Super Stardust Ultra
Waves are spawned patterns, not adaptive opponents
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Serious Sam: The First Encounter
Enemy placement is consistent across runs; no hidden information
Super Stardust Ultra
Spawn timing varies slightly but is quickly familiar
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Serious Sam: The First Encounter
Enemy priority and positioning strategy are learnable but shallow
Super Stardust Ultra
Weapon choice and multiplier management refine scores
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.