head to head
Dune 2000 asks more than Red Dead Redemption 2, and the gap is optimization.

Optimization · Practiced Mastery
Spice economy management and build-order knowledge with modest micro demands.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Dune 2000 leans Optimization (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dune 2000
Unit micro and build speed matter at competitive pace
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Dune 2000 leans clearly harder on reads.
Dune 2000
Human skirmishes add some build-order mind games
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dune 2000
Fog of war hides enemy composition until scouted
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Dune 2000 leans clearly harder on optimization.
Dune 2000
Spice economy and build orders decide most games
Red Dead Redemption 2
Loadouts and routes solvable but loose.
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.