head to head
Mighty Doom asks more than Grand Theft Auto V, and the gap is variance.

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

Execution · Practiced Mastery
A top-down single-touch shooter testing dodging reflexes through Doom-themed runs.
Grand Theft Auto V leans Execution (Practiced Mastery); Mighty Doom leans Execution (Practiced Mastery).
Mighty Doom leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Mighty Doom
Single-touch dodging and aiming under fire demands 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.
Mighty Doom
Enemies and bosses scripted, not adaptive
Mighty Doom leans clearly harder on variance.
Grand Theft Auto V
Some mission and lobby randomness.
Mighty Doom
Randomized loot and level layouts vary runs
Mighty Doom leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Mighty Doom
Leveling, gear and weapon upgrades drive progression
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.