As the southern United States struggles to come to terms with the devastating effects of Hurricane Katrina, a series of initiatives have been launched by games publishers, developers and websites in a bid to help.
Halo developer Bungie has designed a Fight the Flood t-shirt, featuring Master Chief himself, available for $19.95 via the Bungie online store. Around $15 from each sale will go straight to the Red Cross, with neither Bungie nor the distributor making a penny in profit.
In addition, Bungie will donate the royalties earned from the sale of all the other products in its online store throughout the month of September.
Meanwhile, Kotaku - one of Eurogamer's favourite sites - has put a giant swag bag of goodies up for sale up on eBay. From books and t-shirts to laser cels and an Xbox 360 faceplate there's plenty of good stuff on offer, and bids have now topped the $250 mark.
If you're feeling especially generous you might like to check out Penny Arcade's eBay listing - the website is auctioning a piece of original artwork and at the time of writing, bids stood at $8600.
Alternatively, give what you can by visiting the American Red Cross site, which accepts credit card donations worldwide.