Building comparison
head to head
Penumbra: Black PlaguevsSunless Skies
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.
Penumbra: Black Plague
Optimization · Systems & Chaos
Frictional's defenseless first-person horror where you solve physics puzzles while hiding from the infected.
Sunless Skies
Variance · Systems & Chaos
A gothic narrative exploration game about flying a steam locomotive through haunted skies.
Penumbra: Black Plague leans Optimization (Systems & Chaos); Sunless Skies leans Variance (Systems & Chaos).
Penumbra: Black PlagueSunless Skies
Axis by axis
Execution2 vs 2
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Black Plague
Physics-grab interactions need only basic mouse control
Sunless Skies
Slow locomotive combat asks little of the hands
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Black Plague
Infected patrol on scripts; hiding beats them every time
Sunless Skies
Horrors and agents follow scripted storylets
Variance5 vs 6
Sunless Skies leans a little harder on variance, though the gap is small.
Penumbra: Black Plague
Unknown layouts, scares, and patrols on a blind run
Sunless Skies
Hidden ports, story branches and terror events
Optimization7 vs 6
Penumbra: Black Plague leans a little harder on optimization, though the gap is small.
Penumbra: Black Plague
Physics puzzles and evasion routes are fully solvable
Sunless Skies
Trade routes and fuel economics are plannable
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.