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 · Grand Arena
An extraction shooter where scavengers dodge killer machines and rival squads for loot.

Execution · Competitive PvP
Aim duels against humans under loot randomness and extraction pressure.
ARC Raiders leans Execution (Grand Arena); Off The Grid leans Execution (Competitive PvP).
Off The Grid leans a little harder on execution, though the gap is small.
ARC Raiders
Gunplay and movement under machine fire
Off The Grid
Gunfights reward aim and movement above all
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ARC Raiders
Rival squads ambush, bait, and adapt
Off The Grid
Predicting human rotations, ambushes and extraction timing matters constantly
ARC Raiders leans a little harder on variance, though the gap is small.
ARC Raiders
Loot spawns and unknown player positions
Off The Grid
Loot rolls, drops and encounter locations randomise runs
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ARC Raiders
Loadout economy and map knowledge compound
Off The Grid
Cyberlimb loadouts and map economy are learnable systems
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.