1. go to your steam game library
2. right click on sins rebellion
3. go to properties
4. go to the local content tab
5. verify the integrity of the game cache
6. you will get a progress bar
7. should be 900 ish files needing to be downloaded
8. it should be automatically downloaded
9. after download, go to sins rebellion
10. check your resolution and other graphics settings so that the game doesn't look like crap
11. enjoy
