What is welltris?

Welltris is a puzzle video game developed by Doka and published by Infogrames in 1989. It is a spin-off of the popular game Tetris, featuring a similar gameplay style but with a unique well-like playing field. Players must align falling shapes in a well-shaped grid, trying to create complete horizontal lines to clear them from the screen. The game also features power-ups and obstacles to add a new level of challenge. Welltris received mixed reviews upon its release, with some critics praising its innovative gameplay mechanics while others found it to be too difficult and frustrating. Despite its mixed reception, Welltris has maintained a cult following among fans of puzzle games.