Metroidvania Developer System 3.2.0 2D Tools 4.6 Community

Submitted by user arunsrajan; MIT; 2026-10-12

Metroidvania Developer System turns the Godot editor into a workbench for metroidvania worlds. Draw the map, paint the rooms, give them atmosphere, check that every path works, and play it, without leaving the editor. It works on its own or with MetSys.

Map
- Draw irregular rooms on a free world map, or drop your scenes on it. Connect them with Hollow Knight-style named gates and group them into colored areas.
- Generate whole areas from curved, slanted or blocky outlines. They split into rooms with doors, and caves are carved through all of them with paths you can walk and backtrack.
- MetSys mode works on MetSys' own grid map instead.

Rooms
- Paint terrain (autotiled), background, decorations and foreground in a Room view.
- Add curved freeform rock and stamps, or trace them from a drawing.
- Generate a cave that fits the room's shape, or convert old static bodies to freeform.

Atmosphere
- 30 shader effects, by area or by drag and drop:
- weather: dust storms, rain, lightning, snow, fog;
- hazards: steam vents, lava, waterfalls, falling rocks;
- Silksong-style scenery: silk threads, wisps, cobwebs, hanging moss, swaying grass, void tendrils.
- Moss, grass, tendrils and webs react to the player.
- Backgrounds: parallax presets, 20 soft animated shader styles, and 20 creature backgrounds for boss rooms. Glowing bees, spiders, birds, bats, owls and more light their habitat as they move and stir when the player does.

Checks
- Physics checks of every room: gates you can reach, headroom, climbs.
- Progression and backtracking analysis, save distance, map validation and stats.
- Exports: JSON, PNG, Graphviz and a Markdown design document.

Play
- MDSWorldGame runs the world: room-to-room transitions, gates and barriers, fast travel, saved exploration and defeated enemies.
- A camera made for irregular rooms, with auto zoom and Phantom Camera support, and a camera director for fights.
- Area titles, music, objectives, dark rooms with lights, 2.5D depth and an in-game map.
- Play from here starts the game in any room.

Two optional art packs are included, Mossgrove and Sunken Gardens. Godot 4.6 or newer, tested on 4.6.1 and 4.7.2. MIT license. Full documentation: https://github.com/arunsrajan/MetroidvaniaDeveloperSystem