head to head
Tetris 99 asks more than Destiny, and the gap is execution.

Execution · Practiced Mastery
A shared-world looter shooter mixing sharp FPS execution with an RNG loot treadmill and solvable raid puzzles.

Execution · Pure Mechanics
Battle royale Tetris where raw stacking speed decides who outlasts 98 opponents.
Destiny leans Execution (Practiced Mastery); Tetris 99 leans Execution (Pure Mechanics).
Tetris 99 leans clearly harder on execution.
Destiny
FPS gunplay and raid mechanics demand real aim.
Tetris 99
High-speed stacking and finesse define survival
Tetris 99 leans a little harder on reads, though the gap is small.
Destiny
Crucible PvP adds genuine human prediction.
Tetris 99
Targeting and badge timing against humans matter mid-match
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Destiny
RNG loot drops famously gate progression.
Tetris 99
Incoming garbage timing and piece sequence add chaos
Destiny leans a little harder on optimization, though the gap is small.
Destiny
Loadout meta and raid routes are solvable systems.
Tetris 99
Stacking theory and downstack efficiency are studied skills
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.