Sweepstakes. Each completed Achievement will automatically provide the user with one (1) entry for the Sweepstakes drawing. To manually enter the Sweepstakes, each eligible entrant must print his or her name, address, city, state, country, postal code, email address, Steam account name, and telephone number, as well as the name of the Summer Camp Activity objective that the entry is for, on a self-addressed 4x6 note card and mail the completed form to: Valve Corporation, P.O. Box 1688, Bellevue, WA 98009-1688. Note cards may be mailed as postcards or in envelopes. No e-mailed or faxed alternate entries are eligible. Facsimiles, photocopies or mechanical reproductions of entries will be void. An alternate entry must be postmarked during the Summer Sales period to be eligible for the Grand Prize Drawing. Alternate entries received after July 18, 2011 will not be eligible for the Sweepstakes. Each user may submit one alternative entry per Summer Camp Activity. Proof of sending or submitting an alternate entry is not proof of receipt of such alternate entry.
Sweepstakes Winners. Sponsor will select one hundred (100) winners by random drawing from all valid entries by July 12, 2011. No later than August 1, 2011, Sponsor will hold a random drawing for alternative entries received, using the same odds as applied for the Achievements based Sweepstakes drawing (determined by the number of Achievement entries). Sponsor will award prizes to the alternative entry winners, if any. Sponsor will contact each winner via email to the address registered to the winning Steam account. The decision of the Sponsor will be final and binding in all matters.