Sandbox Mode is our most-requested feature, so we're taking advantage of Early Access to put it in your hands as soon as possible. Fair warning, it is not as polished as the other gameplay modes! Not yet, anyway. But core functionality is there, so this is the perfect time to put it out there and start getting feedback.
The first thing you'll notice about Sandbox Mode is the lack of strikes or objectives. All upgrades are available (fast-plant trees, wind control), and there is no limit to the number of disasters you can spawn. But that's just the beginning. Click the wrench icon to switch to the edit tools and unlock a whole new level of control!
The top three tools on the left are for manipulating the terrain. Raise, level, or lower the ground by clicking and dragging to highlight rectangular patches of earth. (Raise and lower also work by clicking a particular spot). The shield icon brings up the defense tray. Select any disaster icon and click on the map to spawn defenses against that disaster type - Wind Turbine for Tornadoes, Tuned Mass Damper for Earthquakes, etc. Keep in mind, most require at least a 2x2 section of flat ground.
Finally, the pin icon allows full control over the map and city layout. Click and drag on the map to move the city 'core,' where buildings are initially spawned. On the right side, the building icon regenerates a new city at the current core location. The trash can icon removes existing buildings and roads, simplifying terrain editing. And the warning icon generates a new map entirely, providing a blank slate for experimentation.

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