head to head
Tutankham asks more than Grand Theft Auto V, and the gap is execution.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
Execution · Practiced Mastery
A maze shooter about navigating a tomb, collecting keys and dodging creatures.
Grand Theft Auto V leans Execution (Practiced Mastery); Tutankham leans Execution (Practiced Mastery).
Tutankham leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Tutankham
Shooting horizontally and dodging creatures needs reflexes
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Tutankham
Creatures are scripted, not adaptive opponents
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.
Tutankham
Enemy spawns add minor unpredictability
Tutankham leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
Tutankham
Memorizing maze layouts and key routes is essential
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.