The latest Humble Weekly Sale focuses on games built using one or more open source tools or libraries.
Pay what you want for Magical Diary, NEO Scavenger, Offspring Fling and Planet Stronghold, or pony up $6 or more for Anodyne, Defender’s Quest: Valley of the Forgotten, Evoland and Incredipede.
The bundle also includes soundtracks and an exclusive Mac and PC demo of Even the Ocean.
All games are available DRM-free with most also supporting Steam, and there are multiple Mac, Linux and even Android ports available.
You have one week to take advantage. As ever, proceeds are split between developers and charities, with a top for the organisers, at your discretion.