Day-um, giveaways don’t come much bigger than this, folks! Vying for your re-tweets this week are some of the hottest new iOS games, including Walking Dead: The Game, ORC: Vengeance and Shellrazer. And, as if that little lot wasn’t enough, two very generous indie developers — XLabz and Eodon Games — just rolled up to iFanzine HQ and dropped off truckloads of promo codes for Sketch W Friends, Zomboozled and 3 Cup Monty!

Walking Dead: The Game: Sample the first episode of Telltale’s critically acclaimed and award-winning game series on us! Set in the same universe as Robert Kirkman’s Walking Dead comics, this sprawling Adventure-horror game centers around an all-new protagonist as he traverses a world devastated by the undead and populated by desperate survivors with a plucky young ward in tow.

ORC Vengeance: iFanzine’s newest recruit, Mark Villamor, reviewed Chillingo’s latest earlier this week and came away very impressed, calling ORC Vengeance the “closest you’ll get to Diablo on iOS!” Looks like Apple agrees this game’s top-notch too because they recently honored ORC Vengeance with one of their coveted App Store Editors’ Choice awards!

Sketch W Friends: XLabz Technologies Pvt. Ltd. (simply XLabz to their friends) have very kindly given us a whopping ten promo codes for their awesome Pictionary/Charades-esque real-time multiplayer-enabled hit, Sketch W Friends! We’ve got five codes to give away for the iPhone/iPod Touch version and another five for the iPad edition, so let us know in the comments which you’d prefer to win.

Shellrazer: This side-scrolling shooter is one of the most insane, addictive and over-the-top-epic games to grace iOS so far this year. Rather than me waxing lyrical about how super-awesome Shellrazer is all over again, you should just check out our glowing review of the game instead.

Zomboozled and 3 Cup Monty: Thanks to our good buddies at Eodon Games, we’ve got a staggering twenty codes to give away — that’s ten for creepily fun puzzler Zomboozled and another ten for 3 Cup Monty, a really enjoyable, mafia-infused twist on the ol’ ball and cup magic trick.

As always, entering is as easy as –

A) Make sure you’re following iFanzine on Twitter.

B) Re-tweet this post as many times as possible all this week! (or share it on Facebook, give the post a quick +1 etc). Bonus points for those of you who ‘like’ our Facebook fan page too!

C) Let us know you’ve completed the above steps by dropping a quick message in the comments section below.

We’ll select the lucky winners at random and distribute prizes one week from the publication date of this post via email and/or twitter.