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
Accessible car control amid demolition chaos rather than precision racing.

Execution · Practiced Mastery
Cartoon kart racing where lines and shortcuts beat the gimmick weapons.
Dirt Showdown leans Execution (Practiced Mastery); Wacky Races leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Showdown
Drifting, boosting and ramming need solid car control
Wacky Races
Kart handling and drift lines decide finishing position
Dirt Showdown leans a little harder on reads, though the gap is small.
Dirt Showdown
Demolition modes reward predicting human movement a little
Wacky Races
AI racers rubber-band by script, not by reading you
Wacky Races leans a little harder on variance, though the gap is small.
Dirt Showdown
Crash physics and pack chaos add randomness
Wacky Races
Item-style dirty tricks inject mid-race chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Showdown
Event types and boost routes are quickly learnable
Wacky Races
Track shortcuts and character stats reward study
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.