If you aren’t familiar with 1C, they are a Russian company that publishes really interesting games from Eastern Europe. If you are looking for something a little different, then you could do much worse.
This week on Amazon, not only are 1C games on sale for $5 each, but when you purchase, you will get a $5 voucher to purchase a second 1C game. There are 73 games to choose from, but personally I’ve been meaning to check out Cryostasis, and King’s Bounty: Platinum Edition looks quite interesting as well!