From the Press Release
To help celebrate Spiderweb Software's 20th Anniversary we've partnered with the Humble Bundle to take over their latest bundle with every game that still runs on a modern computer. For one week only you can get fifteen games spanning a decade and a half, including Avernum 1-7, Geneforge 1-5, and Avadon: The Black Fortress. Two additional games are available for people who pay above average, including the most recent release, Avernum: Escape from the Pit and the classic historic-fantasy Nethergate: Resurrection. Get the whole bundle at http://www.humblebundle.com/weekly.
The Avernum series focuses on the story of an under-world realm, the pit, into which outcasts, criminals, and political enemies are cast. From within that dark prison will arise revolution, exploration, danger, and freedom. In Geneforge you take the role of a character in a world filled with people able to create life its self, for good or for evil, and will find yourself in the center of generations of power struggles that result. In Avadon you are a bringer of law and order who's authority is absolute, but the powers outside your realm are growing and even the strongest fortress will eventually fall. Finally, in Nethergate, you take control of a band of Roman or Celtic warrior, who's fate is to be tossed into a conflict far larger than originally bargained for.
Each Spiderweb RPG is a massive world filled with quests, dialogue, options, exploration, magic, and turmoil. With well over 400 hours of gameplay to explore there may never be a larger bundle. Pick it up at http://www.humblebundle.com/weekly and learn more about the upcoming Avadon 2: The Corruption at www.SpiderwebSoftware.com.