head to head
Neither is simply harder - they are hard in different places. PUBG Mobile demands more execution; Unfortunate Spacemen demands more reads.

Execution · Grand Arena
Battle royale survival blending aim, rotation planning, and heavy circle-and-loot RNG.

Reads · Bluff & Deduction
Spacemen complete station tasks while a shapeshifting monster impersonates and eats them.
PUBG Mobile leans Execution (Grand Arena); Unfortunate Spacemen leans Reads (Bluff & Deduction).
PUBG Mobile leans clearly harder on execution.
PUBG Mobile
Touchscreen aim and recoil control set the ceiling
Unfortunate Spacemen
Shooter combat matters once the monster is exposed.
Unfortunate Spacemen leans clearly harder on reads.
PUBG Mobile
Outguessing rotations and third-party timing of human squads
Unfortunate Spacemen
The shapeshifter wins by out-modeling suspicious human crewmates.
PUBG Mobile leans a little harder on variance, though the gap is small.
PUBG Mobile
Circle placement, loot and drop locations dominate single matches
Unfortunate Spacemen
Hidden monster identity and random objectives drive uncertainty.
PUBG Mobile leans clearly harder on optimization.
PUBG Mobile
Zone rotation theory and loadout priorities are well mapped
Unfortunate Spacemen
Station layouts and objective flow reward repetition modestly.
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.