head to head
DayZ asks more than Friday the 13th: The Game, and the gap is execution.

Variance · Grand Arena
Hardcore survival sandbox where other players are scarier than the zombies.

Reads · Bluff & Deduction
An asymmetric multiplayer horror game where counselors and a human Jason try to out-predict each other around random item spawns.
DayZ leans Variance (Grand Arena); Friday the 13th: The Game leans Reads (Bluff & Deduction).
DayZ leans clearly harder on execution.
DayZ
gunfights punish slow hands severely
Friday the 13th: The Game
Juking, stunning, and minigame inputs matter modestly
Friday the 13th: The Game leans a little harder on reads, though the gap is small.
DayZ
every survivor met may lie, ambush, or befriend
Friday the 13th: The Game
Jason and counselors are humans predicting each other
DayZ leans clearly harder on variance.
DayZ
loot spawns and who you meet are unknowable
Friday the 13th: The Game
Random item spawns and hidden objective parts
DayZ leans a little harder on optimization, though the gap is small.
DayZ
map knowledge and survival routines compound
Friday the 13th: The Game
Objective routes and perk loadouts are learnable
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.