There are a number of systems in 3rd edition that we’ve adjusted in our play. Most of it requires very little text to change. A good example is how sensors work. I changed two sentences in the book and the difference is profound. A sensor lock guarantee a hit on the target now unless they evade or use ECMs to break the lock.
Some things, like giving more choices during survival challenges took a small addition to the text, but it’s really very trivial in terms of the bulk of the text. I’m still debating changing more but even that will still be minor changes here and there.
Tech challenges are the big change, but by big, I kind of mean small. They are far simpler, they require less instruction and are more powerful and flexible. They’re also more intuitive which they weren’t before, there was too much process in the process. As a result of the changes I’ve actually had to pad out the text with a few minor additions or the page count would all change, requiring me to re-lay out a large fraction of the book.
In all, the changes are significant in play, but in terms of changes to the book they’re really minor. I was thinking of this as 3.5 but after seeing how little I was changing as far as the text, this is definitely more of a 3.1.
We’re currently testing a highly modified version of the rules that would require a big re-write but that will take a lot more time and testing. These changes have really improved our play so I want to get them out to you before all that.