The Humble Indie Bundle 12 features pay what you want prices on a variety of indie games.
You can grab SteamWorld Dig, Hammerwatch, and Gunpoint for whatever price tag you want, but you will only receive a Steam key if $1 USD or more is spent. If you pay more than the average price (currently $7.87 USD) you can also get Papers, Please, LUFTRAUSERS, Gone Home, and “More games coming soon!” in edition to the other three games. If you pay $10 USD or more, you will get all of the games previously listed along with Prison Architect (Early Access). Soundtracks are bundled in for SteamWorld Dig, Hammerwatch, LUFTRAUSERS, and Gone Home. Keep an eye on the Humble Indie Bundle 12, more games should be coming soon!
All purchases on Humble support charity, so your money goes to a good cause. The customer can split up their payment between charity, game developers, and Humble.
Check out the Humble Indie Bundle 12 here: https://www.humblebundle.com/
