Bag randomizers are a modern thing, imposed by the Tetris company on all Tetris games released for the last couple decades. Classic Tetris almost universally us

Bag randomizers are a modern thing, imposed by the Tetris company on all Tetris games released for the last couple decades. Classic Tetris almost universally used a standard rng, sometimes with some memory mechanism to attempt to prevent runs (ie. Remember the last piece and attempt a reroll N times to get a non duplicate piece. I believe nestris used a 1 piece memory). You were definitely not guaranteed to get an I piece in any particular number of drops in any Tetris released in the 80s afaik. I think bag randomizers came about in Tetris worlds