Serious Sam 4 announced, to be funded by Humble Bundle

Croteam has revealed that they are working on Serious Sam 4, the next installment in the shooter series. In order to get more funds for the development of Serious Sam 4, Croteam has patterned with Humble Bundle and offering all games from the series on a serious discount that includes Serious Sam HD: The First Encounter and Serious Sam HD: The Second Encounter, Serious Sam: The Random Encounter, Sam Double D and Serious Sam: Kamikaze Attack plus the original tech demo of Serious Sam. While buying this bundle, you can choose- to whom you want to donate your money, give it to Child’s Play Charity, the Electronic Frontier Foundation or to the Croteam for the development of the Serious Sam 4

Paying more than the average of $4.34 will unlock Serious Sam 3:BFG and Non-HD edition of Serious Sam 2.