A new tool for the modding community quietly appeared on Steam yesterday. Cities XXL - Map Editor on Steam From the description: This tool is an improvement over the previous one for XL, as map makers can can selectively plant trees, set the water level and color, generate textures, add particle effects like smoke or water vapor, and more, all without having to use existing in-game maps as a base. In other words, we shouldn't have to concern ourselves with deleting trees in the water any more whenever we load up a new custom map made using this tool. The drawback - it appears that maps made using this tool will not be compatible with older versions of the game; at least, one map I tested crashed my XL 2012 game. Perhaps the map experts can make some magic happen? In any case, having seen some pictures of maps made already using the tool and some new features it enables, I'm greatly looking forward to seeing what the community will do with this.