head to head
Super Tetris 3 asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
A Tetris variant collection testing placement speed across multiple rule sets.
Half-Life 2 leans Execution (Pure Mechanics); Super Tetris 3 leans Execution (Pure Mechanics).
Super Tetris 3 leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Super Tetris 3
Precise piece placement under accelerating speed is everything
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Super Tetris 3
Solo, no opponent to predict in standard modes
Super Tetris 3 leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Super Tetris 3
Piece sequence is random but bounded and mappable
Super Tetris 3 leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Super Tetris 3
Stacking strategy has known optimal patterns
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.