First-person shooter Borderlands 2 offers up a ton of guns and a huge, open-world map with more in-jokes and Easter eggs than you can shake a boom-stick at. With the help of our friends over at Aspyr (publisher of the Mac version of the game), we’re going to share with you four of the hardest-to-find secrets from within the post-apocalyptic sci-fi video game.

Plus, read till the end and you’ll get a special deal exclusively for Cult of Mac readers who want their own copy of the Game of the Year edition of Borderlands 2 (the one with all the DLC packs along with the basic game) at a heavily discounted price.

Borderlands 2. BioShock Infinite. Civilization V. Just a few of the AAA titles hit with deep discounts at Aspyr’s GameAgent game store as the platform celebrates reaching 100,000 members. How deep? All the above-mentioned titles can be had at 75 percent off. Even non-Aspyr titles like Napoleon: Total War and XCOM: Enemy Unknown will be discounted, though at only (only!) half-off.

It’s time to return to the bizarre and unpredictable planet of Pandora with Borderlands 2…and Cult of Mac Deals will you help you do so without putting a dent in your wallet.

A true role playing first person shooter, you can embark on campaigns solo, or invite three friends to join you in the mayhem that is sure to ensue. This game is just pure, unadulterated, shoot-em-up fun that’s wrapped in an absurd, colorful, and interactive package. Add to that four-player online and co-op goodness, and you have an addictive game everyone can love. And all for just $9.99!

Mac gamers rejoice, as Mac game port superstar Aspyr just announced the fantastic news that the latest hilariously bloody Borderlands 2 downloadable content (DLC), “TK Baha’s Bloody Harvest,” is available for Mac on the very same day it is available for PC gamers, bringing us all closer together in our need to blast each other away in 2K Games’ brilliant first person shooter game.

Hardcore Vault Hunters may have noticed that the opportunity to venture forth with their PC-based comrades — a huge boon that arrived in an update almost two months ago — was no longer an option as of early this month, when the latest Borderlands 2 patch hit PCs, throwing the two operating systems out of sync again.

But the two platforms are now synced again, thanks to Aspyr’s lightning-fast release of a Mac-side patch. They’ve also brought us the $5, Steam-only Ultimate Vault Hunter’s Pack DLC, which raises the level cap and adds a “super-rare line of weapons.” Yeehaw.

That’s right — along with the news today of the Hammerlock DLC release, Aspyr announced that Borderlands 2 has gone cross-platform, meaning you can now play the game online with those who own the PC version of the game.

This is a pretty big deal, since there simply aren’t nearly as many Mac players as there are on Windows machines, and forming parties with other players adds a huge chunk of fun to the hybrid RPG/first-person shooter.

Borderlands 2 is unequivocally the best first-person shooter available for the Mac. Right now it’s half off at the Steam store, making it $30, meaning you can snag a deal better even than the Mac App Store price of $45.

like its predecessor, Borderlands 2 combines fast-paced combat with role playing concepts like a skill tree, a witty, well-written storyline and a staggering degree of weapon selection. The Steam version also includes multiplayer, something the Mac App Store version doesn’t currently support. Better hurry if you want to catch the deal, though — Borderlands 2 is back at full price tomorrow morning.

If you’ve been playing Borderlands 2 since it came out for the Mac a while back, you’ll know how very wacky and inappropriately violent it is. If you’ve already blasted your way through the main storyline and side quests, though, you might be feeling a little bereft at the end of your time on Pandora.

No worries, then, as Aspyr’s got your back, with their port of the DLC, “Mr. Torgue’s Campaign of Carnage,” available now on both Steam and the Mac Game Store.

If you haven’t been playing Borderlands 2, what’s up with that? Get on it, Vault Hunter!

Steam has kicked off its autumn sale by reducing some of the best games for Mac by as much as 75%. The sale runs until November 26, and Steam will add new games each and every day. Some of the Mac titles kicking off the sale today include The Walking Dead, Civilization V, Borderlands 2, and many, many more.

A couple weeks ago we told you that Borderlands 2 was coming to the Mac this month. Fast forward to today, and the highly-anticipated shooter has hit OS X only two months after it debuted on the PC.

And who said Macs couldn’t be gaming consoles?