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

Reads · Grand Arena
A multiplayer survival sandbox where human adversaries make every base a target.

Optimization · Grand Arena
A real-time strategy classic where perfected build orders and mechanical speed decide most matches.
Rust leans Reads (Grand Arena); StarCraft leans Optimization (Grand Arena).
StarCraft leans a little harder on execution, though the gap is small.
Rust
Aim and recoil control crucial in PvP encounters.
StarCraft
APM and micro control ceiling is huge
Rust leans a little harder on reads, though the gap is small.
Rust
Human raiders and roamers adapt to your patterns constantly.
StarCraft
scouting and predicting human opponent builds
Rust leans clearly harder on variance.
Rust
Loot and resource spawns add modest randomness.
StarCraft
minimal hidden info beyond fog of war
StarCraft leans clearly harder on optimization.
Rust
Base design, farming, and raid prep dominate strategy.
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.