There’s a Voucher code good for 20% off Darksiders II – Limited Edition at Green Man Gaming (GMG). Use the code DEATH-SAVES-MONEYat checkout to get the game for only $39.96. The game uses Steamworks, so Steam activation is required.
Tropico Reloaded is on sale for $1.73 (75% off). Will not activate on Steam.
Beta Weekend Event 2 will begin on Friday, June 8th, at noon PDT (GMT-7) and will run until Sunday, June 10th, at 11:59 p.m. PDT (GMT-7).
So if no other deals pop up before Friday or Saturday you can pick it at GMG if you definitely want to try it out now. Or there’s ways to get free beta keys. I pre-ordered earlier before the first beta weekend but I never finished the download.
Also note that they did have issues with some of their CD keys the first time around but their support was pretty good at resolving the issues. Just for the record my CD key worked fine (I think).