Play U.S.J. Incident — a browser visual novel from the My Hero Academia world. The League of Villains storms the Unforeseen Simulation Joint during rescue training. As Midoriya, make split-second choices, protect your classmates, and face Shigaraki. Every scene is written live by an LLM as you play.
Final Product: U.S.J. Incident
U.S.J. Incident is a playable visual novel set in the world of My Hero Academia. The League of Villains storms the Unforeseen Simulation Joint during Class 1-A rescue training — and a routine drill turns into a live crisis. As Izuku Midoriya, you scan the flood zone and the collapse zone for threats while the class moves to protect Thirteen.
Every scene is written live as you play. Scan the villains, protect a classmate, or rush the threat head-on — the AI weaves each choice into the story, and somewhere in the warp mist, Shigaraki is waiting.
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Game Features
- Live LLM Narrative — Every scene, every reply, and every character — Midoriya, Bakugo, Uraraka, and Aizawa — is written in real time by an LLM as you play. No two rescues unfold the same (deepseek-chat real-time narrative).
- Branching Decisions — Each turn offers live choices: protect a classmate, analyze the villains, or rush the threat. Every choice reshapes the battle for the U.S.J.
- Meter-Driven Tension — A live progress meter tracks how deep into the incident you are, from the first warp gate to the final stand against the League.
- Full Playable Cast — Bakugo's explosions, Uraraka's gravity, Aizawa's erasure, and Midoriya's One For All — each classmate becomes part of the rescue.
- Cast Panel & Turn Log — Open the cast panel to check every hero's status and re-read the turn log to trace how your choices changed the fight.
- Browser Playable — Runs directly in your browser, no download needed. Live LLM dialogue on every page turn.
Character Sprites
Production Process Breakdown
AI receives the prompt "Create a My Hero Academia world with UA High School, heroes, villains, and Quirks" and generates the My Hero Academia world — 32 atom cards: characters (8), locations (7), events (10), factions (4), rules (3). Each card contains original descriptions, cover art, and interconnections.
AI designs the game from atom cards: writes story rules, designs scene flow, generates all art assets (title background + 5 scene backgrounds) and 5 character sprites. Each sprite was generated with a full-body sprite prompt, then background-removed to transparent PNG via BiRefNet.
Game built and published with one click, instantly shareable online. A live LLM (deepseek-chat) improvises dialogue in each character's voice — Midoriya, Bakugo, Uraraka, Aizawa, and Shigaraki — as you play.
Scene Backgrounds
Asset Prompts
"16:9 cinematic title background, Unforeseen Simulation Joint exterior glass dome of U.A. High School training facility, stormy dramatic sky with purple lightning, modern futuristic architecture, no people, no text, no logos, no UI, anime My Hero Academia inspired environment art, moody heroic crisis atmosphere, empty lower third for title overlay"
"16:9 anime environment background only, U.S.J. central plaza mock city training ground, empty streets, glass dome overhead, soft daylight, no people, no text, clean visual novel background for My Hero Academia style disaster training facility"
"16:9 anime environment background only, flooded artificial city training zone, deep water between buildings, emergency lights, misty atmosphere, no people, no text, My Hero Academia U.S.J. flood zone style"
"16:9 anime environment background only, collapsed training structure rubble zone, broken concrete pillars, dust in air, dim emergency red lights, no people, no text, My Hero Academia U.S.J. collapse zone style"
"Full-body visual novel character sprite source image for AVG runtime. One character standing upright in a natural neutral pose, entire body visible from head to shoes, centered with generous margin around hair, hands, clothing, and feet. Plain pure white matte background (#ffffff) for clean cutout; no scenery, no interior, no exterior, no decorative backdrop, no gradient, no shadowy environment, no checkerboard transparency pattern, no pixel grid, no fake transparent background. Teenage boy hero Izuku Midoriya style: messy dark green curly hair, freckles, large earnest green eyes, green tight hero costume with dark green accents and red shoes, full-face smile-inspired mask pushed up or stylized without obscuring face too much, athletic build mid-teens. Anime cel-shaded My Hero Academia inspired. Neutral calm expression. No text, logo, watermark, frame, card border, or UI."
"Full-body visual novel character sprite source image for AVG runtime. One character standing upright natural neutral pose, entire body visible head to shoes, centered generous margin. Plain pure white matte background (#ffffff). Teenage boy Katsuki Bakugo style: spiky ash-blond hair, sharp red eyes, black tank top style hero costume with orange X straps, grenade gauntlets, military pants and boots, aggressive confident neutral expression. Anime cel-shaded My Hero Academia inspired. No text logo watermark frame."
"Full-body visual novel character sprite source image for AVG runtime. One character standing upright natural neutral pose, entire body visible head to shoes, centered generous margin. Plain pure white matte background (#ffffff). Young adult man Tomura Shigaraki early League look: messy pale blue-gray hair, cracked dry pale skin, red eyes, black hoodie and dark pants, grotesque hand accessories motif subtle, cold flat neutral expression. Anime cel-shaded My Hero Academia inspired. No text logo watermark frame."
Why Choose Neta Studio
Professional — Cloud harness system supports the full workflow from world building to game publishing, all running in the cloud with no local setup. Stable access to the latest models: Claude Opus 5 Grok 4.5 Kimi 3 DeepSeek V3 GPT Image 2 Gemini 3.1
One-click generation — Officially tuned skills drive every step: world building, character design, art generation, game packaging. World fork resource sharing lets you inherit characters, locations, and events from any public world, then rewrite what you want.
Community-first — Users build unlimited worlds, all public worlds can be forked, remixed, reimagined. The Discord learning community provides tutorials and real-time support — from your first world to your first game.
Studio Interior
Start Creating
This game was generated by Neta Studio AI from a single sentence. The world took minutes. The game took minutes. You can do it too — adapt this world or start fresh from any IP. No coding required, free to start.