head to head
The Chronicles of Riddick: Assault on Dark Athena asks more than Grand Theft Auto V, and the gap is optimization.

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

Execution · Practiced Mastery
The sequel-remake pairing Butcher Bay with a new stealth-action campaign aboard a mercenary ship.
Grand Theft Auto V leans Execution (Practiced Mastery); The Chronicles of Riddick: Assault on Dark Athena leans Execution (Practiced Mastery).
The Chronicles of Riddick: Assault on Dark Athena leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
The Chronicles of Riddick: Assault on Dark Athena
Melee takedowns and gunplay demand reliable hands
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.
The Chronicles of Riddick: Assault on Dark Athena
Drone and guard behavior is fully scripted
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.
The Chronicles of Riddick: Assault on Dark Athena
First-run uncertainty about patrols and drone placements
The Chronicles of Riddick: Assault on Dark Athena leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
The Chronicles of Riddick: Assault on Dark Athena
Stealth routes and encounter solutions are learnable fixed content
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.