Erogen is an adult-oriented AI companion platform focused on immersive roleplay. Users can chat with a catalog of pre-made characters spanning romance, anime, realistic, and other themes, or build their own companions with a character creation tool, and generate avatar images via a built-in AI image generator. The project was publicly introduced in early 2024 with a stated goal of offering a more polished, safe, and accessible middle ground between heavily restricted apps and completely unrestricted platforms. Erogen runs a free tier alongside a premium membership ("Erogen Platinum") that unlocks private characters and creator analytics, and it runs community contests to encourage character creation. The platform is explicitly NSFW behind age gating. Company ownership, founder identities, and headquarters are not publicly disclosed.