Platinum Arts Sandbox - Free 3D Game Maker Forum

Maybe I am missing something, but how do I begin creating the game? Is there a how-to manual. I downloaded and then clicked on the SandBox launcher, which appeared to launch an existing game. But, how do I modify/edit?

First off: I don't recommend you use the launcher, click on the actual .bt (batch file) file for fps or rpg. This will bring you the the menu for your selected mode. In RPG press F1, In FPS press E, or in either or click toggle editmode. After being in edit mode you have more options one is : New Map. This here is your answer.