Until the charitable event's June 28 conclusion, The Summer Games Done Quick Bundle offers 10 games for $25, with 100 percent of its proceeds going to Doctors Without Borders. The bundle includes Gunpoint, Amnesia: A Machine for Pigs and Guacamelee! Gold Edition, among others. In the case of Guacamelee, only 25,000 copies are available for the sale, so anyone interested in brawling through an adventure as a luchador (and sometimes a rooster) should make a swift purchase.
For PC users, each game can be claimed via Steam key or as a DRM-free download. Mac and Linux users should look closely at each game's dropdown menu before buying in however, since not all of them are available without DRM on all platforms, or even available on Mac and Linux in the first place.