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 · Pure Mechanics
An explosively destructible run-and-gun starring parody action-movie heroes.

Execution · Pure Mechanics
A twin-stick arcade shooter where relentless swarm pressure demands perfect movement and targeting at escalating pace.
Broforce leans Execution (Pure Mechanics); Geometry Wars 3: Dimensions leans Execution (Pure Mechanics).
Geometry Wars 3: Dimensions leans a little harder on execution, though the gap is small.
Broforce
Run-and-gun reflexes amid constant explosions
Geometry Wars 3: Dimensions
Weaving geometric enemy swarms at extreme speed is the ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Broforce
Enemies are dumb scripts
Geometry Wars 3: Dimensions
No opponent; all enemy behaviour is scripted swarm logic
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Broforce
Random bro assignments and destructible chaos shake runs
Geometry Wars 3: Dimensions
Enemy spawn positions vary run-to-run, adding chaos
Geometry Wars 3: Dimensions leans a little harder on optimization, though the gap is small.
Broforce
Knowing each bro's kit and level layouts helps
Geometry Wars 3: Dimensions
Drone type selection and geom farming locations 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.