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 · Practiced Mastery
The original loot-driven co-op shooter set on the bandit world of Pandora.

Optimization · Practiced Mastery
An action horror game where a death-row inmate fights execution-themed monsters during a prison island breakout.
Borderlands leans Optimization (Practiced Mastery); The Suffering 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.
Borderlands
Standard FPS aim; numbers matter more than precision
The Suffering
Fast shooting and the Insanity transformation reward sharp play
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands
Bandits and skags are scripted
The Suffering
Malefactors attack on fixed archetype patterns
Borderlands leans a little harder on variance, though the gap is small.
Borderlands
Procedural loot drops gate your power
The Suffering
Unknown spawns and morality outcomes on a blind run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands
Builds, gear math, and farming routes dominate
The Suffering
Weapon choice, rage meter use, and routes are learnable
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.