http://blog.wolfire.com/2009/02/overgrowth-faq/
What is the Overgrowth story-line?
Overgrowth will pick up a few years after Lugaru left off in the same universe. Turner will again be the main character but I’m not supposed to leak any major plot points just yet.
How will Overgrowth multiplayer work?
Our primary focus will be adding some co-operative, multiplayer elements. We’re not sure yet how many players can be supported at the same time but initial multiplayer tests have been successful.
How much does it cost to preorder Overgrowth?
USD $29.95. You can preorder Overgrowth here.
Why should I preorder Overgrowth?
1. You get admitted to an exclusive club called the Secret Preorder Forum or SPF. I am bound by the 1st rule of SPF (and 2nd and 3rd…) not to talk about what happens in SPF but it is full of Overgrowth discussions, alpha testing stuff, and people showing off modding screenshots and such. For an example of the kinds of things that get created in SPF, click here.
2. You get to download our weekly alpha builds. Fans have enjoyed watching us build Overgrowth from the ground up. Now many are enjoying building their own houses and jumping around with rabbot. Every week, new stuff is added, until we are done (and then hopefully fans will take over with our modding tools!)
3. You get that warm fuzzy feeling of knowing that you are helping the small indie company that is Wolfire survive in the crowded and noisy space of the gaming industry. Thanks to fan support we were able get better computers and more coffee. Both have helped us code faster.
We have no publisher or external investors, so we are in a pretty unique situation where we are getting funded by fans. When you preorder, you also get the Mac, Windows, and Linux versions of Overgrowth, and we get 100% of the money. If you order through, for example, Steam later on, you will only get the Steam version and we will not get your full support.