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

Execution · Pure Mechanics
A punishing western arcade shooter testing directional-fire dexterity.

Execution · Pure Mechanics
A loud, high-endurance test of accurate crowd control against relentless scripted enemy swarms in open arenas.
Gun.Smoke leans Execution (Pure Mechanics); Serious Sam: The First Encounter leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Gun.Smoke
Three-way shot aiming under relentless scroll pressure
Serious Sam: The First Encounter
Sustained accurate fire against enormous enemy hordes demands constant aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Gun.Smoke
Outlaws spawn in fixed patterns
Serious Sam: The First Encounter
All enemies are scripted and follow fixed rush patterns
Serious Sam: The First Encounter leans a little harder on variance, though the gap is small.
Gun.Smoke
Item barrels sit in the same spots every credit
Serious Sam: The First Encounter
Enemy placement is consistent across runs; no hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gun.Smoke
Boss patterns and item routes reward memorisation
Serious Sam: The First Encounter
Enemy priority and positioning strategy are learnable but shallow
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.