Engadget recommends only products that have been reviewed by our editorial staff. This is independent from our parent company. Affiliate links may be included in some of our stories. We may be compensated if you purchase something using one of these affiliate links.Omaze has a second chance to give away a PC if you missed the last one. Through September 18, the company will be holding a sweepstakes in which you could win $20,000 towards any gaming or other PC that you choose.Enter to Win at OmazeThis sweepstake is open to all, and you can enter for free. However, you have the option to purchase additional entries. All proceeds from this giveaway will be donated to charity. Schools on Wheels provides tutoring and mentoring services for children living in poverty throughout Southern California. Funds raised from this giveaway will go to Schools on Wheels. To get 150 bonus entries, use code RADNESS150 during checkout.Omaze is a website that helps charities raise money through experiences and giveaways. You don't need to spend any money to enter giveaways such as this. However, it will increase your chances to win if you spend a little more. The "Fundraising Transparency” section of the giveaway page explains how funds are allocated.Prices and availability are subject to change. This sweepstakes is open to all. Check out the official Omaze rules.