head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
An ultraviolent co-op brawler dragging four fighters through a grim drug-soaked Soviet underworld.

Execution · Practiced Mastery
Brutal cyberpunk twin-stick shooter about dash management and skill respeccing.
Mother Russia Bleeds leans Execution (Practiced Mastery); Ruiner leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Mother Russia Bleeds
Brutal crowd fights demand sharp dodges, grabs, and timing.
Ruiner
Dash timing and twin-stick precision under heavy pressure.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mother Russia Bleeds
Enemies are scripted, never modelling you.
Ruiner
Enemy waves are fixed patterns.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mother Russia Bleeds
Minor enemy mix and syringe-drop randomness.
Ruiner
First-run unknowns in arena compositions.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mother Russia Bleeds
Nekro drug management and wave layouts are learnable.
Ruiner
Respeccable skill builds per arena are a solvable puzzle.
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.