head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Kiting scripted alien swarms with top-down aim and upgrade planning.

Execution · Practiced Mastery
A pinball-platformer hybrid where flippers fling a mail-delivering beetle across an open island.
Shadowgrounds Survivor leans Execution (Practiced Mastery); Yoku's Island Express 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.
Shadowgrounds Survivor
Kiting alien swarms with top-down aim is the core demand
Yoku's Island Express
Pinball flipper timing drives all traversal
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Shadowgrounds Survivor
Aliens charge on simple scripted aggression
Yoku's Island Express
Solo, nothing models you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Shadowgrounds Survivor
Spawn waves vary slightly in survival mode
Yoku's Island Express
Ball physics adds small bounce unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Shadowgrounds Survivor
Weapon upgrade order and positioning reward planning
Yoku's Island Express
Learning table layouts and exploration routes
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.