Xbox 360 owners with a dollar to spare should consider putting it to good use and grab Decimation X, a retro arcade shooter recently released onto the Marketplace via the Xbox Live Indie Games section. Its fun, its simple, its awesome.

Dec X brings gameplay for up to four players including co-op mode all at a (as the developer Xona Games puts it) “smooth 60 frames per second”, oh yeah baby, so velvety smooth.

The title is available now for perhaps my favorite price of all: $1. As always, a demo is available for sampling as well. Check out the game’s trailer and more at the developer’s official site. From the description:

This game was classified by the community with the following category scores – Violence=1/3, Sex=0/3, Mature Content=0/3. 1-4 player intense retro shmup. Classic 2D fixed gallery shooter. Features: Insane firepower, progressive defences, tons of power-ups. Smooth 60 frames per second, pure arcade action.