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.

Optimization · Practiced Mastery
An aerial-view crash puzzler about maximizing chain pileups at busy intersections.

Optimization · Practiced Mastery
Routing efficient digs and upgrades through a randomised mine.
Burnout Crash! leans Optimization (Practiced Mastery); SteamWorld Dig leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Burnout Crash!
Triggering and aiming the pileup needs some timing
SteamWorld Dig
Digging and platforming need modest precision
Burnout Crash! leans a little harder on reads, though the gap is small.
Burnout Crash!
No adaptive opponent at the intersection
SteamWorld Dig
Enemies follow simple fixed patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Burnout Crash!
Traffic spawns and chain reactions add chaos
SteamWorld Dig
Randomised mine layouts hide ore and hazards each run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Burnout Crash!
Maximizing chain pileups and intersection knowledge drives scores
SteamWorld Dig
Upgrade routing and efficient dig paths drive progress
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.