Slydris

Slydris was developed by Radiangames founded by Luke Schneider, a former designer at Volition.^[2] Slydris was initially released for iOS to utilize iPad larger screen for the block-sliding mechanics on July 26, 2012.^[3] Following high demands for the game, an update to make it compatible with iPhone was released universally in December 2012,  followed by a port for Android on June 7, 2013.^[4]

In Slydris, the player drags blocks left or right into an entire line of the same color. Once finished, the line disappear, and the player earn points. Clearing a row of a single colour creates a “colour buster” and extra bonuses are awarded.^[2] Unlike Tetris where blocks fall automatically, gravity pulls blocks down to fill gap once player let go.^[5] There are special blocks including Shatter, Locked and Magnet which complicate game plan. Players can customize backgrounds to dark or light and synchronized music tracks.^[2]

The game has different modes including Infinite Mode where new blocks appear after making a move and the game ends if the stack hits the top.^[4] Zen Mode does not award score and does not have game-over rules allowing endless play. In the Survival Mode, new blocks drop at interval of 10 seconds forcing players to plan and act quickly.

On Metacritic, the game has a "generally favorable" score of 86% based on eight critics.^[6]

Multiple critics praised the game.^{[7][8][9][10][1][11]}