head to head
Neither is simply harder - they are hard in different places. Dark and Darker demands more variance; StarCraft demands more optimization.

Reads · Grand Arena
Tests slow-melee dueling and predicting human extraction squads under loot RNG.

Optimization · Grand Arena
A real-time strategy classic where perfected build orders and mechanical speed decide most matches.
Dark and Darker leans Reads (Grand Arena); StarCraft leans Optimization (Grand Arena).
StarCraft leans a little harder on execution, though the gap is small.
Dark and Darker
Slow melee timing, spacing and spell aim decide fights
StarCraft
APM and micro control ceiling is huge
Dark and Darker leans a little harder on reads, though the gap is small.
Dark and Darker
Third-partying, baiting and outplaying human squads is central
StarCraft
scouting and predicting human opponent builds
Dark and Darker leans clearly harder on variance.
Dark and Darker
Loot rolls, spawns and circle placement shape every raid
StarCraft
minimal hidden info beyond fog of war
StarCraft leans clearly harder on optimization.
Dark and Darker
Gear economy, class builds and dungeon routes reward grinding knowledge
StarCraft
build orders and economy are near-solvable
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.