Welcome to mutaplasmid.space, an EVE Online fan website dedicated to helping you find, buy, and sell abyssal modules.
If you play the New Eden markets, EVE Mogul is the service for you. Their great tools allow you to track and optimize your market activities.
Pyfa is the best tool available for simulating fits and it can import abyssal modules directly from this website!
Chat about, appraise, buy and sell abyssal modules on Discord. Also has an in-game channel: "abyssal trading discord".