The newest Humble Bundle is dedicated to Unreal engine games on PC and Steam, and you can head on over to the official site or take a look at the bundled games below. The campaign last for another 13 days, so you can also take your time and wait for more added games.
Have a look yourself at humblebundle.com, if this catches your fancy.
Pay at least one dollar (USD):
◙ Killing Floor
◙ Dangerous Golf
◙ Shadow Complex Remastered
Pay more than the average to unlock:
◙ The Vanishing of Ethan Carter
◙ Adrift
◙ The Mean Greens - Plastic Warfare
Pay $10 or more to unlock:
◙ The Culling (Early Access)
Which of these looks most appealing?