IndieRoyale.com are currently offering a new, limited time only, indie bundle featuring a selection of Serious Sam and Serious Sam-themed games. The new bundle contains the first two Serious Sam games (the original versions of First and Second Encounter, rather than the more recent HD remakes), as well as the three instalments  from 2011 indie series of releases.

The three indie titles are:

Serious Sam: Double D – A 2D side-scroller which sets itself apart from others in the genre with a quirky stacking mechanic, allowing you to pile guns on top of one another.

Serious Sam: Kamikaze Attack – Another 2D side-scroller where the player takes control of a beheaded kamikaze, chasing after Sam in an attempt to stop him.

Serious Sam: The Random Encounter – A quirky top down, turn-based RPG set in a random, pixel world.

As with all previous IndieRoyale bundles, the price it is available for will constantly rise as more and more people purchase it, so the quicker you get it the less money you will have to spend. The games will also be available for download in a variety of methods, with availability on Steam, Desura, and as a DRM-free Windows download inconsistently available across all the games on offer.

However, unlike previous bundles offered by the site, the offer is only available for 100 hours. The offer started at around 16:00 GMT on Tuesday 24 January, so grab it while you can.