Played Starbound for hours last night, had a great time, did lots of things etc etc. Boot the game up today and suddenly I am having lag problems I wasn't having last night. The planet I had been exploring became unplayable , FPS slowing to a crawl. Returning to my home base I found there are spots where the FPS drops to 17 frames a second. Thinking it might be an item issue I backed up my save folders and stripped the place bare of all items and furniture. Still that 17 FPS. I get 24 Frames a walk away over by a pile of NPCs - and much much better rates on different planets that I haven't been to before. What's causing this crazy lag and how can I make it go away? Note: The answer IS NOT "turn off vsync" or "turn texture limiter on/off." I did my homework - those did nothing. Here we see an absurd 17 FPS in an empty room with no items or furniture. Things are no better with the items back in place. As I ascend the tower the frame rate improves Things are great up here. But why? The place is just as bad empty as full - so it's not moving parts that are sucking down the frame rate If I played all the way zoomed out the game slows to a crawl - but as you can see there's nothing here. All the colony NPCs are several screens away - and I went over and kicked them out and it still ran badly. On a Mac, so changing Compatilibility mode will also do nothing. The game was not running this sluggishly before I turned it off after many hours of play last night. Lag spikes continue all over the place. New planet, never before visited - some ice world empty save for a few scientists - lag drops to 10 FPS, game is unplayable.