Building comparison
head to head
DayZvsOverwatch
Neither is simply harder - they are hard in different places. DayZ demands more variance; Overwatch demands more execution.
DayZ
Variance · Grand Arena
Hardcore survival sandbox where other players are scarier than the zombies.
Overwatch
Execution · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.
DayZ leans Variance (Grand Arena); Overwatch leans Execution (Grand Arena).
DayZOverwatch
Axis by axis
Execution6 vs 8
Overwatch leans clearly harder on execution.
DayZ
gunfights punish slow hands severely
Overwatch
Hero aim, movement, and ability timing
Reads6 vs 7
Overwatch leans a little harder on reads, though the gap is small.
DayZ
every survivor met may lie, ambush, or befriend
Overwatch
Ult tracking, flanks, and baiting human teams
Variance7 vs 2
DayZ leans clearly harder on variance.
DayZ
loot spawns and who you meet are unknowable
Overwatch
Minor spread and matchmaking noise
Optimization5 vs 6
Overwatch leans a little harder on optimization, though the gap is small.
DayZ
map knowledge and survival routines compound
Overwatch
Team comps, ult economy, and positioning theory
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.