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

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.

Optimization · Practiced Mastery
Off-road simulator about hauling lumber through brutally deformable Russian mud.
Red Dead Redemption 2 leans Execution (Practiced Mastery); Spintires leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Spintires
Throttle finesse and winching through mud need careful hands
Red Dead Redemption 2 leans a little harder on reads, though the gap is small.
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Spintires
No opponents
Spintires leans a little harder on variance, though the gap is small.
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Spintires
Terrain deforms dynamically; fuel and routes uncertain until scouted
Spintires leans clearly harder on optimization.
Red Dead Redemption 2
Loadouts and routes solvable but loose.
Spintires
Route choice, fuel logistics, and vehicle selection decide success
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.