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

Optimization · Systems & Chaos
Surviving and optimising a research facility escape by solving its crafting systems against scripted anomalies.

Optimization · Systems & Chaos
Loot-shooter RPG built on gear chasing.
Abiotic Factor leans Optimization (Systems & Chaos); Borderlands 2 leans Optimization (Systems & Chaos).
Borderlands 2 leans a little harder on execution, though the gap is small.
Abiotic Factor
Combat in tight facility corridors requires precise aim and positioning
Borderlands 2
Aim matters but generous hit feel
Borderlands 2 leans a little harder on reads, though the gap is small.
Abiotic Factor
Anomaly and creature AI is scripted with fixed patterns
Borderlands 2
Enemies are scripted loot fodder
Borderlands 2 leans a little harder on variance, though the gap is small.
Abiotic Factor
Loot crates, anomaly behaviour, and facility section contents carry RNG
Borderlands 2
Procedurally generated weapon drops vary
Borderlands 2 leans a little harder on optimization, though the gap is small.
Abiotic Factor
Facility routing, crafting tree unlocks, and power grid design are solvable
Borderlands 2
Skill trees and gear math heavily solved
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.