Rat Hunter is a traditional first-person-shooter that firmly takes its inspiration from Doom, Quake and other older titles. It's all about fast-paced shooting action and the design is kept intentionally simple. You will gain no benefit from headshots, there's no cover system and no iron sights.

Butch Grid is a freelance journalist who travels the galaxy in search of hot stories, then sells them to the highest bidder. Computer hacking and industrial espionage are among his many skills. When he stumbles across accounts of citizens going missing on the remote planet Spigs, with a possible link to the New Generation cybernetics corporation, he knows he could be onto something big. Grid travels to the planet and takes a job as a 'rat hunter,' dealing with the local mutant insect problem. It's the perfect cover for his investigation, or so he thinks. Needless to say, Grid discovers more than he bargained for.