When a well-received big-budget game falls below that magical $20 price point, I'm in. Green Man Gaming has an excellent deal on Tomb Raider which drops the PC version from $49.99 all the way down to $16.99. And with the promo code GMG20-LLASD-D8WBQ, it's $13.60.
Yes, that is ridiculous! Act sooner than later, as the deal is good through the rest of the day.