Slopverse is a browser-based AI role-playing game built by Jonathan Larson, a solo developer in California. You pick one of 301 ready-made worlds or describe one in a line, then play the lead: you type what your character says and does, and an AI writer plays everyone else and the world around you. It is a story game rather than a companion chat, so there is no catalogue of bots and no one-to-one thread with a single character, and there are no stats, inventory or dice rolls to manage.
Each turn comes back full screen as a scene rather than a column of text. A typical turn brings one to two new images, each on screen for about eight seconds, roughly eight voiced lines with the speaker's lips moving and every line captioned, layered sound and a score that shifts with the mood. Short video clips of about three seconds also play inside the turn, with nothing to press and no wait afterwards: a still comes alive and plays out its action between the images or as the narration ends. Around half of turns have carried a clip since they launched, and clips play for everyone, including the free trial that needs no account.
Continuity is the part that separates it from a prompt-by-prompt generator. Every named character gets a portrait, and each new image is built from the faces of up to three people in it, so a cast stays recognisable. Clothing, hair, held objects, the weather, the hour of day, firelight, the crowd, the world's art style and each character's voice are all kept on file and change only when the story changes them. Every image also gets a depth map, so near elements slide past far ones as the camera drifts and pushes in, and people and objects can be clicked to aim your next move at them.
The audio is unusually deep for a browser game. The library runs to 3,126 sounds made for the game plus 1,140 licence-free real recordings, placed in stereo and timed to the words, with about two layered under the voices in a typical turn. The score covers 1,302 tracks made for the game, roughly 42 hours across 20 moods and six genres, of which 1,207 are split into instrument stems so drums and bass drop in and out with the tension, alongside 413 real recordings of about 25 hours. On top of that sit 154 visual effects across 19 families and 20 film transitions, timed to the words.
Story text is written by GLM 5.3 with Gemini 4 Argon as a backup. Slopverse does not publish which models generate its images, video, voices or music. Text starts returning about a second after a move, the first voice about three seconds after that, and a typical turn then plays for about 25 seconds.
Pricing is 20 free scenes at sign-up with no card, then 5 more free every day, and a no-sign-up trial that plays your first 10 moves live. Paid packs are Starter at $5 for 100 turns, Plus at $10 for 225 and Director at $25 for 600, with a 50-turn top-up at $3 that never expires; a turn is one move you send. The game is for adults, at roughly the level of an R-rated film, and the images never show nudity. Slopverse states that it does not sell personal information and does not use player stories for advertising or to train AI models. It is not affiliated with AI Dungeon, Character.AI or any other AI story app.