Croteam is working on Serious Sam 4, and to build excitement for the sequel--as well as grab some needed development funds--it has partnered Humble Bundle to throw together all the games from the series into one package for purchase.
Croteam is earmarking all the funds it gets from the bundle for the new game, which will come out some time in 2014. Devolver Digital will be the publisher.
Five Serious Sam games and the original beta tech demo are included in the pay-what-you-want package, including Kamikaze Attack, Double D, the Random Encounter, the First Encounter, and the Second Encounter. Paying more than the average price, which currently stands at $4.15, will get you Serious Sam 2 and Serious Sam 3: BFE Deluxe Edition. All of the games are DRM free and for PC. All but Kamikazee Attack and the beta will be available through Steam.
The bundle has already garnered more than $181,000. The sale will continue through next Thursday.