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 · Pure Optimization
An open sandbox where mastering crafting and building systems dominates over any physical skill.

Optimization · Pure Optimization
A PS3 reimagining of Siren where American visitors evade undead villagers using sight-jacking stealth.
Minecraft: Java Edition leans Optimization (Pure Optimization); Siren: Blood Curse leans Optimization (Pure Optimization).
Siren: Blood Curse leans a little harder on execution, though the gap is small.
Minecraft: Java Edition
barely relevant, building/PvP negligible for most
Siren: Blood Curse
Stealth and occasional melee need only moderate precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Minecraft: Java Edition
no adaptive opponent, sandbox play
Siren: Blood Curse
Shibito behaviour is scripted patrol logic, not adaptation
Siren: Blood Curse leans a little harder on variance, though the gap is small.
Minecraft: Java Edition
world gen and mob spawns randomized
Siren: Blood Curse
Hidden patrol routes and triggers until sightjacked and learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Minecraft: Java Edition
redstone, base/resource routing solvable systems
Siren: Blood Curse
Episodic missions reduce to learnable route-and-timing puzzles
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.