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.

Optimization · Pure Optimization
A third-person tower defense about funneling orc hordes into gleefully lethal trap corridors.

Optimization · Practiced Mastery
Solving camera placement puzzles, then executing the watch-and-shoot plan under time pressure.
Orcs Must Die! leans Optimization (Pure Optimization); Star Fox Guard leans Optimization (Practiced Mastery).
Star Fox Guard leans a little harder on execution, though the gap is small.
Orcs Must Die!
Active shooting supplements the traps
Star Fox Guard
Snapping between camera feeds to shoot robots needs quick hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Orcs Must Die!
Orc waves follow fixed paths
Star Fox Guard
Robot waves follow fixed scripted routes, nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Orcs Must Die!
Minor wave composition randomness
Star Fox Guard
Wave compositions are unknown on first attempts only
Orcs Must Die! leans a little harder on optimization, though the gap is small.
Orcs Must Die!
Trap placement and kill-corridor economics are the game
Star Fox Guard
Camera placement and wave memorisation solve each map
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.