2 news for you people:
1. Talos is 50% off for a limited time starting today!
http://store.steampowered.com/app/257510/
If you are still unsure if you should buy it, check out this reviews overview, maybe it helps ;)
2. Serious Sam replaced all Elohim's quotes in attempt to make game 'even more serious' in a freshly released Serious DLC that all Talos Principle owners can get for free till April 7th!
http://store.steampowered.com/app/360820/
For more info on Serious DLC head here:
http://www.croteam.com/serious-sam-shows-elohim-how-its-do…/