This week's Humble Weekly Bundle is Humble Bundle Simulators 2, which offers a handful of simulation games for whatever you want DRM-free and in support of charity.
Pay what you want to get for Universe Sandbox, Cook, Serve, Delicious! and Out of the Park Baseball 14. Pay $6 or more to also get Turbo Dismount and Tropico 4: Steam Special Edition.
If you are willing to cough up $10 or more, you can get everything already mentioned plus Euro Truck Simulator 2 along with the brand new Fantasy Paint Jobs Pack available exclusively through this bundle.
According to the folks at Humble Bundle, if you bought all of these games separately, it'd cost you up to $96. Charities being supported this time around are Electronic Frontier Foundation and the American Red Cross.
You can learn more by visiting www.humblebundle.com/weekly.