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

Optimization · Pure Optimization
A tactical squad shooter where positioning and probability management outweigh raw aim.

Optimization · Practiced Mastery
Tests upgrade economy and lane prioritisation in a defense shooter.
The Bureau: XCOM Declassified leans Optimization (Pure Optimization); The Culling of the Cows 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.
The Bureau: XCOM Declassified
cover shooting timing is moderate
The Culling of the Cows
Aimed shots at lanes need modest timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Bureau: XCOM Declassified
alien AI is scripted, no adaptation
The Culling of the Cows
Waves are scripted with no adaptation
The Bureau: XCOM Declassified leans a little harder on variance, though the gap is small.
The Bureau: XCOM Declassified
cover-based hit chances are randomized
The Culling of the Cows
Mutation timing adds small surprises
The Bureau: XCOM Declassified leans a little harder on optimization, though the gap is small.
The Bureau: XCOM Declassified
squad tactics and builds are solvable
The Culling of the Cows
Upgrade economy and lane priorities are the solvable core
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.