Terra Formars is a seinen sci-fi action horror manga written and illustrated by Kenichi Tachibana that follows a crew of genetically enhanced soldiers sent to Mars, only to discover that the cockroaches used to terraform the planet have mutated into massive, intelligent humanoid creatures with a single goal: eradicate all human life.

What sets Terra Formars apart is its relentless blend of body horror, survival, war, and tragedy wrapped in hard science-fiction. Each human operative has undergone the 'Bugs Procedure' — experimental surgery grafting animal DNA to grant superhuman abilities — creating a cast of diverse, emotionally complex fighters in an ensemble cast driven by themes of betrayal, dead love interests, inherited power, and espionage. The stakes are existential: a mysterious virus threatening Earth forces every brutal Mars expedition, escalating the conflict between human factions and the terrifying Terraformars into something far larger than simple extermination.

With 263 chapters of intense martial arts combat, gore, drama, and romance, Terra Formars delivers one of the most visceral and emotionally charged space adventure experiences in modern manga — read every chapter free online in high quality and find out why fans of Attack on Titan, Gantz, and Knights of Sidonia consider it essential reading.