DiezelPower has released a new update for their arena-based zombie shooter Nation Red, now available on Steam. The patch brings the new strategic gameplay mode along with new weapons, player perks,  Steam achievements, leaderboards, and more.

To celebrate the new content release, Nation Red has been given a 30% discount putting the game at $7; an extremely good price for the fully loaded, often updated game.

Though no actual end date for the sale has been mentioned, similar sales in the past usually run around a week which would give you until Monday, November 9. A demo for Nation Red is available for download here.

Dejobaan Games’ base jumping free-faller Aaaaa! A Reckless Disregard for Gravity has been given a 30% discount off the standard price through this weekend on Impulse.

The title has the player diving off skyscrapers like a diving board in the Olympics and as you fall judges determine your score based on style, the stunts you pull on the way down, and of course whether you stick the landing in one piece or several thousand pieces.

A Reckless Disregard for Gravity is available through Sunday, November 1 for just $9.99.

Lugaru, a game best described as a bunny-combat simulator, is now on sale for the low, low price of $4.95! I haven’t personally played the game, but the reviews are all decent enough (7.5 average) and I have trouble not recommending any indie game that is this cheap… seriously.

Oh and did I mention the back story sounds AWESOME? Check it out:

“Follow Turner, a rebel bunny rabbit with impressive combat skills, in his quest to find those responsible for slaughtering his village. Uncover a far-reaching conspiracy involving the corrupt leaders of the rabbit republic and the wolves of the nearby lands.”

How kick ass does that sound? Well, there’s only one way to find out. I’m taking the plunge. Will you join me? The sale is only around for a limited time so you’ll have to make your decision quickly.

[via Destructoid; buy from Direc2Drive]

Corbomite Games adventure title Pizza Morgana contains many creatures that fit the standard Halloween theme, so the dev put two and two together and have announced a sale to celebrate the last day of the October.

From now through the 31st, PC’ers can pick up Monsters and Manipulations in the Magical Forest, Episode One of the series, for 50% off the standard price. Just enter the coupon code Halloween2009 at checkout and they’ll knock off half the cost.

Pizza Morgana Episode One released August 16th, though over two months later we’ve heard no news of what the second episode entails and when it will arrive.

Developer Psyonix has announced via press release that it’s PSN vehicle combat title Supersonic Acrobatic Rocket-Powered Battle-Cars will run for only $4.99, 50% off the standard price, for the next two weeks in celebration of the game’s first anniversary.

“October marks the one-year launch anniversary of Supersonic Acrobatic Rocket-Powered Battle-Cars – our first self-published title – and we feel like having a party,” said Dave Hagewood, Director of Development for Psyonix. “So we decided to give back to PlayStation 3 owners by giving those who have been missing out on the fun some added incentive to join the Battle-Cars community.”

Sounds good to us. Offer is on now through October 29.

Steam has given Hidden Path’s terrific tower defense title Defense Grid: The Awakening a permanent price cut down to $10–half of what the game previously cost on PC. The highly regarded indie title pulls a more than respectable 82 on MetaCritic, with a 9.3 user score to boot.

With the drop, the newly priced PC version falls in line with the Xbox Live Arcade offering, which is available for 800 MS Points ($10).

For those who’d like to check Defense Grid out before they buy, a demo is available for Steam users to try anytime.

Steam has listed Amanita Design’s award winning indie puzzle adventure game Machinarium for pre-order, offering 25% off to those who purchase the title before it’s release. Meaning the fully 2D hand-drawn game can be had for merely $15 before October 16 when the game unlocks.

Machinarium was honored twice in 2009, first at this year’s IGF receiving the award for Excellence in Visual Art and later as an official selection for the this year’s PAX.

A demo of the game is available for Steam users as well.