The games bundle, which is available until March 20 for a US$1 minimum, will see proceeds going to charity as usual.

Gamers will be able to pick up four classic titles for less than $5.99 while donating more will get players even more titles. Read on to learn more.

Customers who choose to donate less than $5.99 will be given a Steam key to download the first tier of games which include Alpha Protocol, Company of Heroes, Rome: Total War and Hell Yeah! Wrath of the Dead Rabbit.

Donate $5.99 or more however and you can gain access the second tier; SEGA will throw in another Steam key which will download Typing of the Dead: OVERKILL, Binary Domain, Medieval II: Total War, SEGA Genesis Collection and Renegade Ops.

If you are feeling particularly generous and donate $14.99 or more, you will access the third tier and receive a third Steam key for the critically acclaimed strategy epic, Total War: Shogun II.

Proceeds donated to charity will be split amongst the following five organisations: Make-A-Wish (www.wish.org), Whale and Dolphin Conservation (www.whales.org), Willow Foundation (www.willowfoundation.org), Special Effect (www.specialeffect.org.uk) and GamesAid (www.gamesaid.org).

“We’re extremely proud to present gamers with a Sega themed Humble Bundle.” said John Clark, Vice President of Digital Distribution at Sega, “It’s a fantastic way to bring some of our classic games to a new audience while helping fund raising efforts for a variety of extremely good causes.”

For more information regarding Humble Bundle check out its official website at www.humblebundle.com.