GOG.com is having a Valentine's Day sale from today through to February 20th, with a large collection of games discounted by up to 90%. GOG chose the games to discount based on what people had in their wishlists; the more people wished for a game, the more likely it was to appear in the sale.
While only a small handful of titles are available at 90% off, you can find a number of popular games at upwards of 50% off. The Witcher 3 GOTY Edition, for example, is 50% off at $25, and you'll also find games like Firewatch, The Witness, Dying Light, and Undertale with similar discounts.
GOG is well known for its large collection of classic games as well, so it's no surprise that games like Baldur's Gate and Rollercoaster Tycoon are hugely discounted. It's definitely worth checking out what's on offer if you're wondering what to play next on PC.
All the games in the list will remain discounted until noon EST on February 20th.