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.

Execution · Practiced Mastery
A hardcore open-world survival game where other prisoners are the real threat.

Execution · Grand Arena
Sim-leaning combined-arms vehicle PvP.
SCUM leans Execution (Practiced Mastery); War Thunder leans Execution (Grand Arena).
War Thunder leans a little harder on execution, though the gap is small.
SCUM
Realistic gunplay and ballistics punish poor aim
War Thunder
Aim, lead, and vehicle handling demanding
War Thunder leans a little harder on reads, though the gap is small.
SCUM
Human players ambush and adapt across the island
War Thunder
Position-versus-position duels are reads
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
SCUM
Loot spawns and unseen players create constant unknowns
War Thunder
Shell ballistics and matchmaking vary
War Thunder leans a little harder on optimization, though the gap is small.
SCUM
Deep metabolism and gear systems reward planning
War Thunder
Vehicle lineups and module unlocks deep
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.