Idea to Engine.
9 free browser tools wired into a single 2D production pipeline. Design the game, generate the level, pack the art, trace the collision, synthesize the audio, balance the numbers — then export to your engine.
Engine compatibility
Exports into
- Godot 4
- Unity
- GameMaker
- Phaser
- Construct
- RPG Maker
Concept & Planning
Decide what you are building before you build it.
World & Level Design
Turn the design doc into playable space.
Art & Tile Systems
Pack sprites and make terrain place itself.
Sprite Sheet Packer
Pack animation frames into a padded atlas with a JSON data file.
Hands off: A packed atlas needs terrain rules so tiles connect without seams.
Autotile Generator
Build a full 47-tile terrain set from two source tiles.
Hands off: Tiles are placed but nothing collides yet. Trace hitboxes next.
Collision & Physics
Give the art bodies the engine can collide with.
Auto Hitbox
Trace a sprite's alpha into a collision polygon automatically.
Hands off: Traced polygons are accurate but vertex-heavy. Simplify before shipping.
Collider Simplifier
Reduce collision vertex count without changing hit behaviour.
Hands off: Collisions resolve silently. Add impact audio next.
Audio & Feedback
Make every action audible.
Progression & Economy
Tune the numbers players will grind against.
Further reading
Frequently asked questions
- What is the Game Dev Lab?
- The Game Dev Lab is a workflow layer that connects Jaconir's individual game development tools into one ordered pipeline. Every tool still works on its own — the Lab tells you which step comes next and what each step hands to the following one, so you can go from an idea to exported engine assets without hunting for the right utility.
- Do I have to follow the pipeline in order?
- No. The order reflects how 2D production usually flows, but you can enter at any step. If you already have art, start at the sprite sheet packer or the hitbox generator. Each page shows where you are and what it expects as input.
- Which engines can I export to?
- Depending on the tool: Godot 4 (.tscn scenes, TileSet resources, CollisionPolygon2D), Unity (PolygonCollider2D, atlas JSON, ScriptableObject data), GameMaker, Phaser, Construct and RPG Maker. Every tool page lists its own supported engines and export formats explicitly.
- Is any of this AI-generated?
- No. Every generator is deterministic browser code — seeded procedural generation, contour tracing, weighted sampling and synthesis. The same inputs always produce the same output, which is what makes results reproducible in a real project.
- Does my art get uploaded anywhere?
- No. All processing happens in your browser using Canvas and Web Audio. Sprites you load never leave your device, and there is no account, no upload step and no server round-trip.
- Are the tools free?
- Yes. Every tool in the Game Dev Lab is free, requires no sign-up, and has no export watermark or asset limit. Output is yours to use in commercial projects.