head to head
Dead Space 3 asks more than Grand Theft Auto V, and the gap is optimization.

Execution · Practiced Mastery
A crafting-heavy survival shooter where weapon-build optimisation and aimed dismemberment carry the loop.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
Dead Space 3 leans Execution (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
Dead Space 3 leans clearly harder on execution.
Dead Space 3
Weapon crafting alters execution demands but shooting stays central
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Dead Space 3
All enemies scripted; co-op adds coordination not prediction
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Dead Space 3 leans a little harder on variance, though the gap is small.
Dead Space 3
Scavenger bot loot adds mild RNG to crafting resources
Grand Theft Auto V
Some mission and lobby randomness.
Dead Space 3 leans clearly harder on optimization.
Dead Space 3
Deep weapon crafting system rewards systematic optimisation
Grand Theft Auto V
Heists, money loops, builds learnable.
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.