head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Practiced Mastery
A top-down shooter testing aim and crowd control against alien hordes.

Execution · Pure Mechanics
The bigger, faster sequel doubling down on chaotic crash physics and stunt minigames.
Alien Shooter: Vengeance leans Execution (Practiced Mastery); FlatOut 2 leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Shooter: Vengeance
Aiming and dodging swarming aliens is the core
FlatOut 2
High-speed control amid wrecks and ragdolls
FlatOut 2 leans a little harder on reads, though the gap is small.
Alien Shooter: Vengeance
Aliens rush mindlessly, no adaptation
FlatOut 2
No adaptive opposition worth modeling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Shooter: Vengeance
Spawns and drops add modest randomness
FlatOut 2
Crash physics and track debris vary every race
Alien Shooter: Vengeance leans a little harder on optimization, though the gap is small.
Alien Shooter: Vengeance
Weapon and stat builds reward planning
FlatOut 2
Track knowledge and car tuning settle into routine
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.