A full 2D game engine that runs in your browser.
AI-assisted generation. Visual scripting. Real-time playtesting.
From quick prototypes to production-quality games.
Not a toy. A full engine with 63+ systems, physics, scripting, and a rendering pipeline.
Production-grade rigid body physics. Runs in a Web Worker with fixed-timestep simulation. Handles 5,000+ bodies at 60fps.
Rust → WASMUser scripts run in an isolated WASM sandbox with CPU and memory limits. No main-thread blocking, no security risks.
640KB memory capGPU-accelerated 2D rendering. Sprite batching, particle systems, lighting, post-processing. WebGPU path for maximum performance.
50K+ sprites (WebGPU)Terrain generation, scene composition, dialogue writing, rule creation — all previewed before applying. Every change is undoable.
Zod-validated outputsEvent pages, conditional branches, self-switches, common events. The same proven system used in professional RPG makers.
30+ command typesReal-time multiplayer editing with conflict-free replicated data types. Vector clocks, operation-based sync, region locking.
Zero-conflict mergeStart with AI and templates. Graduate to visual scripting. Master the full engine.
Tell the AI what you want in plain English. "Add a haunted forest with NPCs and quests."
BeginnerUse the visual editor to refine terrain, place assets, adjust encounters. No code needed.
IntermediateBuild complex logic with the node graph editor. Connect events, conditions, and actions visually.
ExpertNot just playable — smooth. Real benchmarks, real numbers.
A complete game development environment — not a collection of disconnected tools.
Generate terrain, scenes, dialogue, quests, and game rules. Preview before applying. Every change is undoable. Works with GPT-4, Claude, or local models.
Press Play and your game runs instantly. Pause, step, inspect entities, view quest state, trace events. Debug like a pro.
HTML5, Desktop (Tauri), Godot, Unity, TMX, glTF, and more. Or share a playable link instantly.
Top-down RPG, platformer, tower defense, roguelike, farm sim. Pre-built markers, quests, triggers, and encounters.
Connect Twitch or Discord. Viewers influence the game via chat commands. Build games live with your audience.
Node editor, terrain painter, collision editor, shader graphs, cutscene timeline. AI is a helper — you have complete control.
From prompt to playable game in seconds.
Templates for the most popular game types — with full gameplay systems pre-wired.
Open the editor in your browser. No download. No account. No limits on what you can create.
Open SparkForge.js