head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
A frantic vertical roguelite about falling fast and shooting your boots.

Execution · Pure Mechanics
Raw arcade reflexes against accelerating swarms with mild spawn randomness.
Downwell leans Execution (Pure Mechanics); Millipede leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Downwell
Gunboot timing and split-second landings decide runs
Millipede
Trackball precision under swarming pressure is everything
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Downwell
Enemies never adapt
Millipede
Enemies follow fixed movement rules
Downwell leans a little harder on variance, though the gap is small.
Downwell
Procedural wells and shop offers vary runs
Millipede
Spawn waves and DDT timing vary run to run
Downwell leans a little harder on optimization, though the gap is small.
Downwell
Combo lines and upgrade picks reward study
Millipede
Mushroom-field management is a thin strategic layer
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.