Welltris – a first sequel of Tetris, a video puzzle game created by Alexey Pajitnov and Andrei Sgenov. The game was originally written for DOS and released in 1989. Porting to various platforms was handled by Sphere, Inc. for Spectrum HoloByte (English) Russian and infograms. The game was ported to the Amiga, Amstrad CPC, Atari ST and Macintosh in 1990, and to the ZX Spectrum and Commodore 64 in 1991.
Like its predecessor game, the gameplay is a pack of falling blocks, but it uses 3D graphics and the blocks themselves remain 2D.
Upon release, the puzzle was given mixed reviews by the gaming press. Journalists praised the gameplay and replayability, but criticized the graphics, controls and sound. The game was sold until 1995, and a total of about 400,000 copies were sold.
On September 23, 1990, a free clone of Welltrix was released on the Amiga platform. This version replicates most of the gameplay features of Welltris, but does not use background images and does not have copy protection. Welltrix was distributed on a 3.5″ floppy disk in the December 1991 issue of Amiga Power magazine. In July 1993, Amiga Force magazine (English) Russian. gave Welltrix a 70% score.
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