gog.com Spring Sale Browse 500+ deals up to 90% off (Witcher III, Crysis, Don’t Starve and many more)

For all the gamers here http://www.gog.com is having a huge spring sale. It looks like almost all of their inventory is discounted and I don’t see it listed for how long. A few of the games I picked up and their steam prices listed below in parentheses:
Sim City 4 Deluxe -75% $4.99
Don’t Starve -70% $4.49 ($14.99)
Bastion -75% $3.74 ($14.99)
Other notable:
The Witcher 3: Wild Hunt GOTY -40% $29.99 ($49.99)
Crysis -75% $4.99 ($19.99)
Tropico 5 -75% $6.24 ($24.99)
Hope this is helpful.