The new weekly Humble Bundle is out, and it’s the second HB celebration of Indie Cade so far. The pay what you want tier gets you Cube and Star: An Arbitrary Love, A Slow Year, and LYNE. Paying more than $6.13 gets you Ibb and Obb and Proteus, while spending $8 gets you early access to Mini Metro and the Artemis Spaceship Bridge Simulator Co-Pilot double pack – giving you a copy for yourself and a friend. Paying $17 or more gets you a four-pack of that and everything else. With its mix of puzzle-heavy gameplay, this bundle is a must for those who want to flex their mental muscles.