I’ve been buried in my work for a few months as well, but this forum needs a little fresh meat, so I thought I’d post the latest video from my real-time 4X space simulator that I’ve rambled on about so much in the past. I’ve found that most people’s unfamiliarity with the finer points of gravity keeps them from jumping into the game if I’m not there with them the first time they play. Since I don’t plan to sell my game as a door-to-door salesman, putting together a good in-game tutorial has been my latest project. To that end, here’s my first rough cut. The following tutorial (or something like it) will be most potential customers’ first impression of my game, and I only get one of those per person. Since the tutorials will be more like movies than games most of the time, the fun-to-fact ratio is tricky. Ideally, I’d like the users’ experience to be like watching a short episode of Nova (an excellent public broadcasting science series in the US) that turns into a video game when it’s over so you can play with what you just learned about. Any feedback or insights would be much appreciated. Anybody here read the Algebraist by Iain M Banks? Remember how the Dwellers made Faasin Taak go through days of spiraling high G maneuvers every time they went somewhere? The final 20 seconds of the video isn’t part of the tutorial, but it shows a ship spiraling at over 1 G for almost a month before running out of fuel and shooting out of the system at 5 million kilometers per hour If you look closely at the debug output, you can see acceleration slowly increases from 1.2G to 1.5G because the ship gets lighter as it burns fuel. http://www.paulmodz.net/Gravity101.wmv FYI - some of the tutorial popups don't stay up long enough to read, and you can't rewind a wmv file until the whole thing is downloaded, so you may want to pause the video when a popup appears.