The Game? "Planets under Attack" for STEAM (Windows + Mac)
Planets under Attack offers a surprising depth of gameplay, while its intuitive controls allow even casual gamers to pick it up and feel comfortable immediately. In addition to the addicting gameplay, Planets under Attack is an obvious labor of love.
tl;dr Please be patient. The site is slow! Create an account on DLH and confirm it (E-Mail). Visit the "Steam keys" page on DLH. Click the blue button to grab the game. There is a hourly limit. If you missed the current round than just try again later. Have fun.
If you've any question or problem, then just take a look at the comments! Feel free to ask a question, or just add a note!