For more giveaways, join this group: http://steamcommunity.com/groups/hacks4sure-pENROSE (No minimum level required so far)
After joining the group and then synchronizing with your steam-account (https://www.steamgifts.com/account/profile/sync) you can join:

https://www.steamgifts.com/giveaway/TKiNJ/star-wars-x-wing-vs-tie-fighter-balance-of-power-campaigns
and
https://www.steamgifts.com/giveaway/Y6U1c/star-wars-galactic-battlegrounds-saga