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
Retro co-op hack-and-slash about kiting monster floods through castle floors.

Execution · Practiced Mastery
Open-world western about an outlaw forced to hunt down his old gang.
Hammerwatch leans Execution (Practiced Mastery); Red Dead Redemption leans Execution (Practiced Mastery).
Hammerwatch leans a little harder on execution, though the gap is small.
Hammerwatch
Kiting hordes and dodging projectiles
Red Dead Redemption
Dead Eye softens but gunplay still wants aim
Red Dead Redemption leans a little harder on reads, though the gap is small.
Hammerwatch
Enemy spawners follow fixed logic
Red Dead Redemption
Multiplayer skirmishes add light human prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hammerwatch
Secrets hidden until the map is learned
Red Dead Redemption
Ambient events and spawns vary mildly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Hammerwatch
Class builds, vendor economy, and secret routes
Red Dead Redemption
Mission approaches and economy are learnable
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.