FreeGameDev

tIDE is a fully featured, open source .NET-based tile editor that allows level designers to easily create content for tile-based games. tIDE supports a custom XM:-based map format, however, support for additional formats may be included via the .NET-based plugin system.



Features
* Intuitive user interface
* Support for multiple tile layers to facilitate the design of games featuring parallax scrolling
* Animated tiles
* Full-featured drawing toolbox to facilitate level design
* Layer ordering and visibility
* Support for an extensive range of display sizes to facilitate alignment when desigining multi-layer maps
* Support for arbitrary tile sizes and multiple tile sheets
* Brushes to facilitate reuse of common composite elements
* Multiple file formats
* Full undo/redo capabilites
* Support for custom properties at every level of the map structure
* Full-screen editing mode
* Zooming capabilities
* Map structure navigation and manipulation via the Map Explorer panel
* Intuitive tile picker
* Auto-scrolling capabilities
* Dockable editor compoonents
* Tile sheet auto-update feature to streamline content creation pipeline
* Painless tile sheet rearragement
* Tile guides and layer viewing options
* Statistics on dimensions and tile usage
* Estensive potential for customisation via a plugin management system
* Built-in help system

The code base for the project is available on CodePlex:
http://tide.codeplex.com/

Looks nice... too bad it isn't done in GTK or qt without .net.

It does look very cool. As Julius says, it is a shame it's tied in to a proprietary platform but I hope we see some more from this project.

It is an editor but does it 'play' games as well?

Version 1.0.1 addresses some important fixes, and introduces support for the Tiled TMX map format (all data encodings supported - XVL, Base64/Plain/GZIP/ZLIB, CSV)