Getting the "Heat Wave" achievement is really easy. The achievement requires you to crash the earth into the sun. Here's what you do if you're confused about the video (this is how I did it, though it might not look like it in the video ;P): 1. Go into edit mode. (I think this step is optional, I dont know) 2. Go to "Add Tool" 3. Place a sun anywhere. 4. Place the earth anywhere. 5. Move your mouse over the earth, and click the "move" button. 6. Move the earth inside the sun 7. Press play. Should be as easy as that. I only just got this game and it's that simple. Achievement Details: Heat Wave Crash the Earth into the Sun Universe Sandbox was on sale between 8th-9th July on Steam for /£3.49. For more walkthroughs and videos on Xbox 360, PC and PS3 games, subscribe now.