I want to make a full fan made Mario 3D world style 2 player game. How do I make a game with multiple levels in blender? Is there something like a sequence editor for video game levels or files?
Set a property on the player. Select the end of level object. Open the Logic Editor. Add a Collision Sensor and add the players property into the Property field. Add a Scene Actuator, change the mode to Set Scene, and type in the desired scene. Connect the Sensor and Actuator (an And Controller will appear between them automatically).