Firstly, in order to download the Weekly Alpha (which started around a year ago) you should look out every monday night for a topic much like this. This topic has links to download a Mac and Windows version of the Alpha. You'll need your Preorder key in order to download btw. Each Alpha averages around 500 mbs when zipped.
Okay, so since all of that is finally aside I can point out a few helpful topics and such...
So one of the most important topics here is Alpha Readme. It has links to a lot of helpful topics and blog posts, one in particular is the Map Editor Controls post which explains quite a few of the controls in the Alpha. Unfortunately this post is a bit old, but the basics remain the same. One article not listed directly on the Alpha Readme is the Basic Controls Article on the Overgrowth Wiki. Also, all of those videos listed are extremely helpful.
One video for those who barely know anything about Overgrowth is this one. It also shows a quick snipit of all our big features and has links to more in depth videos.
Anyhow, we haven't made too much as far as a community goes, but the Big Community Campaign (BCC) and the far more active Community Mapping Project (CMP) are somewhat big operations going on. Several users have made some maps which I'd recommend checking out as well...
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The first ever map, Kohlbrinia, by Nimai. Luckily we have an up to date version here to download.
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My first 'good map', Foothold, by Hale.
If you want an updated file of this map, you can also look here.
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The largest map to date, Riverhurst, by Hale. It has around 12,000 objects, so expect some major lag... D:
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Another map by...eh...me...Arena Map Pack, by Hale. First of my maps to have specific purpose.
Those are all of those maps, I'm going to have to also recommend yet another creation of mine, the Prefabricated Resources Pack as well. Anyhow, so enough of this self advertisement! Here is an introduction of our devs by Wilbefest...
David:
A sort of child prodigy of game design, David has been making games since primary school - Lugaru and Black Shades were down to him alone. There is some dispute over whether David actually exists - it may be that he's real only in the "Big Brother" sense, as there's a chance that Jeff is simply being copy-pasted twice into all the photos. He rarely shows up on the forums, or even the IRC. Whatever the case he's the leader of the bunch.
Jeff
David's (evil) twin brother, Jeff is the "serious" programmer, doing most of the web and application stuff to get the thing to actually work while David thinks about clever graphics algorithms and has cunning plans. Jeff had a real job once upon a time so he knows what he's doing!
Aubrey:
Aubrey is a mysterious ninja-graphics-dude. In fact, on the forums he is known as "Ninjas" Anything that is aesthetically appealing (2D, 3D, textures, video) is down to him so he has a lot of work to do. Aubrey also had a real job before, working for a commercial development company. I think.
John:
John's job description is "everything else" he embodies sales, marketing and customer relations: on the one had he's like the CEO, on the other he makes the coffee, but most of us would agree that he has the best job on the planet. John knows about Economics which is a sort of black magic that makes other people give you their money. He also has an epic beard, kilt and voice.
Phillip:
Phillip left to do his Master's degree - one day he will return though, if we have faith.
They've also introduced themselves properly on the blog
Other than that you can look through the comments to see what other fellow Wolfire Members have chosen to share with you folks. It'd be great to hear you guys introduce yourselves and all...
Welcome!
) and so I wish you the best of luck.