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

Execution · Pure Mechanics
A twin-stick arcade shooter about surviving neon geometric enemy swarms for high score.

Execution · Pure Mechanics
The classic execution-under-acceleration test wrapped in an immersive audiovisual experience.
Geometry Wars 3: Dimensions Evolved leans Execution (Pure Mechanics); Tetris Effect: Connected 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.
Geometry Wars 3: Dimensions Evolved
Twin-stick precision dodging and shooting under chaos.
Tetris Effect: Connected
Precision placement under acceleration is the entire skill ceiling
Tetris Effect: Connected leans a little harder on reads, though the gap is small.
Geometry Wars 3: Dimensions Evolved
No opponent modeling the player.
Tetris Effect: Connected
Zone-battle opponents exist but format leans on execution
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Geometry Wars 3: Dimensions Evolved
Enemy spawn patterns have randomized elements.
Tetris Effect: Connected
Piece bag is bounded random but quickly mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Geometry Wars 3: Dimensions Evolved
Scoring routes are learnable but execution dominates.
Tetris Effect: Connected
T-spin and stacking strategy is knowable but execution overrides it
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.