LucasArts' artsy platformer Lucidity and Doublesix' self-explanatory South Park Let's Go Tower Defense Play! both arrive on Xbox Live Arcade this Wednesday.

Each game will cost you 800 Microsoft Points ($10). Footage of Lucidity--which is also coming to PC--can be found here, while a South Park trailer is exists on the official site. And if you can't decide, there are always the trial versions.

What happens when you mix South Park and the tower defense genre? See below, but look out. I hear those ginger kids, old people and hippies make formidable foes. An Xbox 360 exclusive developed by Microsoft and South Park Digital Studios, South Park Let's Go Tower Defense Play! arrives as an Xbox Live Arcade download October 7.

Ending an extended period of silence, Microsoft has provided details and a release date for the downloadable South Park Xbox Live Arcade game announced last summer.

Slated to hit October 7--the same day that new episodes of the show debut on Comedy Central--"South Park Let's Go Tower Defense Play!" is said to be "a fast-paced action/strategy game that combines these loveable characters with snowball battles and tower defense tactics."

The game is being developed by South Park Digital Studios and Microsoft, with the latter today describing itself as "that crazy little band of outlaws who brought you hilarious products like Microsoft SQL Server Management Express 2008 Service Pack 1."