ZX81 Tetris by AdrianPilko is a classic simple puzzler game made for the Sinclair ZX 81 Game.
As the puzzle pieces of different shapes come rolling down one by one, you need to shift them, set them according to their shape and land them down using as less space as possible. Then, they’ll auto merge into other puzzle pieces. Once there is no space left on the screen, you’ll fail the game. It’s a basic tetris game without intro screen.