Building comparison
head to head
Half-Life 2vsosu!
osu! asks more than Half-Life 2, and the gap is execution.
Half-Life 2
Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
osu!
Execution · Pure Mechanics
Rhythm game where clicking circles to the beat becomes an athletic discipline.
Half-Life 2 leans Execution (Pure Mechanics); osu! leans Execution (Pure Mechanics).
Half-Life 2osu!
Axis by axis
Execution6 vs 10
osu! leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
osu!
Pixel-perfect cursor aim and tapping at extreme speeds
Reads1 vs 0
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
osu!
No opponent interaction in scoring
Variance1 vs 0
Half-Life 2 leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
osu!
Beatmaps are fully deterministic
Optimization3 vs 2
Half-Life 2 leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
osu!
Mod choices and map selection for ranking
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.