Thornado

Turrican can be described as a cross between Metroid and Psycho-Nics Oscar. While the huge levels and the morph-ball function were inspired by Metroid, the overall graphics design and weapons were inspired by Psycho-Nics Oscar. Unlike many other action games of its time, Turrican did not force the player to complete a linear level. Instead, the player can explore each level and uncover secrets.

The lost colony of Alterra is a completely man-made world in a nearby galaxy, abandoned long ago. Alterra consists of five self-contained habitats, separately bio-engineered by a powerful ecosystem generation network known as a Multiple Organism Unit Link, or MORGUL for short. Early colonists used MORGUL to render Alterra habitable, but a cataclysmic earthquake severed all system interface functions, and MORGUL murderously rebelled. The few colonists lucky enough to escape told a grim tale of a higher intelligence gone berserk.

For generations, mankind sought a return to Alterra. Finally, genetic science created a saviour: Turrican, a mutant warrior, bio-engineered for the task of planetary reclamation. In the meantime, MORGUL has diligently twisted Alterran life forms to his brutal, destructive purposes. Thus, Turrican's challenges consist of eliminating hostile organisms from Alterra's five multi-level worlds and, finally, destroying the three faces of MORGUL.

The series started in 1989 on the Commodore 64 with a demo level of the full game which was released in 1990. Turrican became popular due to its high technical achievements, demonstrating graphics which many did not believe to be possible on a C64. Turrican was developed mainly by Manfred Trenz and published by Rainbow Arts.

Turrican was released for the Amiga, Atari ST, Amstrad CPC, ZX Spectrum and CDTV. Factor 5 handled the Amiga, Atari ST and CDTV versions, while the Amstrad CPC and ZX Spectrum were developed by Probe Software. While all of these versions were published in Europe, the Commodore versions were the only computer versions to be published in North America, by Innerprise Software. The Spectrum version of the game went to number 2 in the UK sales charts, behind Shadow Warriors.

The Spectrum version was voted number 36 in the Your Sinclair Readers' Top 100 Games of All Time. The four reviewers from Mega Play gave very positive reviews for the Sega Genesis port and lauded the variety of weapons and techniques. They also praised the gameplay for having a good combination of strategy and action. One reviewer felt that Turrican is "the ultimate action game for the Genesis".