head to head
Grand Theft Auto V asks more than Part Time UFO, and the gap is reads.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
A physics puzzle game about grabbing and stacking objects with a UFO claw.
Grand Theft Auto V leans Execution (Practiced Mastery); Part Time UFO leans Execution (Practiced Mastery).
Part Time UFO leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Part Time UFO
Precise crane control to grab and stack objects
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Part Time UFO
Solo, no opponent to predict
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Some mission and lobby randomness.
Part Time UFO
Physics wobble adds minor unpredictability
Part Time UFO leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Part Time UFO
Figuring out efficient stacking solves each job
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.