Steam weekend deal: Metro 2033 for $10
There's never been a better time to explore the dilapidated, mutant-infested subway tunnels of Russia's future, as Valve has knocked the price of Metro 2033 down to a measly $10 for the weekend. With savings like that, you could pick up an extra gas mask and some radiation meds.
Metro 2033
$20$10 [Steam]