head to head
Titan Attacks! asks more than Red Dead Redemption 2, and the gap is execution.

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

Execution · Practiced Mastery
A Space Invaders descendant testing arcade aim plus an upgrade-economy layer.
Red Dead Redemption 2 leans Execution (Practiced Mastery); Titan Attacks! leans Execution (Practiced Mastery).
Titan Attacks! leans clearly harder on execution.
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Titan Attacks!
Dodging fire while sniping descending waves is pure arcade aim
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.
Titan Attacks!
Alien waves follow fixed formations
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Titan Attacks!
Bounty drops and saucer timing add minor noise
Titan Attacks! leans a little harder on optimization, though the gap is small.
Red Dead Redemption 2
Loadouts and routes solvable but loose.
Titan Attacks!
Upgrade purchases between waves form a small economy to solve
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.