It’s been just over a week since Chevy Ray Johnston launched Gamestorm, a blog dedicated to featuring his fellow developers’ game design doodles and sketches, and some really awesome stuff has been posted since then, some of which you might recognize from your favorite indie games.

Some of the more recognizable submissions include early tile designs for the procedurally-generated rooftops in Canabalt, drawn-to-scale graph paper sketches of the modules in the Captain Forever series, and a world map for Banov’s Metroidvania Escape from the Underworld, color-coded to correspond with the unlockables that allow you access to these areas.

If you want more Gamestorm submissions, you have plenty to look forward to: according to his Twitter, there are as of this week still something like 100 sketches that Chevy Ray has yet to post . Conversely, if you’d like to help contribute, you can submit your own sketches by heading to gamestorm.tumblr.com/submit. All he asks is that you include your name, website/blog and where you’re from. Happy Gamestorm-ing!