Hearts of Iron IV official artwork of a tank

The Humble Monthly is a $12 subscription service that instantly gives you access to a couple of games, and then a whole bunch more once the next month rolls over. The quality of these games tends to be all over the place, and the same applies to this month's bundle as the three highlighted games are a rather strange pairing: Hearts of Iron IV, Blackwake, and Portal Knights.

I've only played Hearts of Iron IV out of this bunch, and for what its worth I do believe it's enough to carry the entire bundle on its own, provided you're into hardcore grand strategy games anyway. As for the rest, I'm afraid I know very little besides the fact that they have a positive review score on Steam. So before you spring for your wallet, I would highly recommend doing a bit of research.

Don't take too long, however, as this Humble Monthly will only last for another three days. Once the time has elapsed you will be granted all of the bonus games and a brand new Humble Monthly will start, so if you're interested in any of the above-mentioned games this is pretty much the perfect time to jump in. Just make sure to unsubscribe if the next month's offerings aren't up your alley!

And just for good measure, allow me to leave you with the Portal Knights announcement trailer. Enjoy!