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 co-op mining shooter where reading randomised caves and optimising class roles carry teams through escalating bug hordes.

Optimization · Practiced Mastery
A S.T.A.L.K.E.R. prequel adding a dynamic faction war across the Zone.
Deep Rock Galactic leans Execution (Practiced Mastery); S.T.A.L.K.E.R.: Clear Sky leans Optimization (Practiced Mastery).
Deep Rock Galactic leans a little harder on execution, though the gap is small.
Deep Rock Galactic
Accurate shooting and mobility across 3D cave terrain is demanding
S.T.A.L.K.E.R.: Clear Sky
Punishing gunfights and anomaly navigation
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Deep Rock Galactic
Glyphids follow scripted swarm patterns, not adaptive behaviour
S.T.A.L.K.E.R.: Clear Sky
Faction-war AI is systemic, not adaptive to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Deep Rock Galactic
Cave layouts, bug types, and secondary objectives randomise each mission
S.T.A.L.K.E.R.: Clear Sky
Dynamic faction war and emission RNG hide outcomes
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Deep Rock Galactic
Class builds, resource routing, and objective sequencing reward mastery
S.T.A.L.K.E.R.: Clear Sky
Upgrade economy and territory routing reward planning
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.