Title	Label	Cover
Amstrad CPC
	Welltris · Floppy Disk 3' · 1990	Erbe Software S.A.
	Welltris · Cassette · 1990	Erbe Software S.A.
	Welltris · Floppy Disk 3' · 1990	Infogrames
	Welltris · Cassette · 1990	Infogrames
Commodore 64/128
	Welltris · Cassette · 1991	Infogrames
	Welltris · Floppy Disk 5'25 · 1991	Infogrames
Commodore Amiga
	Welltris · Floppy Disk 3,5' · 1990	Infogrames
	Welltris · Floppy Disk 3,5' · 1990	Spectrum Holobyte
ZX Spectrum
	Welltris · Cassette · 1984	Erbe Software S.A.
	Welltris · Cassette · 1991	Infogrames
	Welltris · Floppy Disk 5'25 · 1991	Infogrames

Wikipedia

Welltris is a puzzle video game, developed by Doka and licensed to Bullet-Proof Software. Adaptations were made by Sphere, Inc., for Spectrum Holobyte, and by Infogrames. It was originally released for MS-DOS and Macintosh in 1989. It was subsequently ported to the Amiga, Amstrad CPC and Atari ST in 1990 and the ZX Spectrum and Commodore 64 in 1991.

Credits

CPCPOWER zxdb lemon64 atari legend Lemon Amiga Hall of light Wikipedia (EN) Universal Videogame List World of Spectrum