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

Execution · Practiced Mastery
Roguelite blending twin-stick shooting with tower-defense crystal escorts.
Borderlands leans Optimization (Practiced Mastery); Endless Dungeon leans Execution (Practiced Mastery).
Endless Dungeon leans a little harder on execution, though the gap is small.
Borderlands
Standard FPS aim; numbers matter more than precision
Endless Dungeon
Twin-stick shooting during wave defenses
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
Endless Dungeon
Monster waves follow spawn rules, not adaptation
Endless Dungeon leans a little harder on variance, though the gap is small.
Borderlands
Procedural loot drops gate your power
Endless Dungeon
Procedural floors and random resource rooms
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
Endless Dungeon
Turret placement and route economy planning
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.