Which one are you going to choose?
Most PC gamers are probably aware of the Humble Monthly gaming subscription. For $12 per month, you get a monthly bundle of games worth over $100. The catch is that some of the games you'll get are a mystery until after you've already paid. But as an assurance, you always get to unlock at least one game early. For the September 2018 Humble Bundle, you actually get a choice. You can either unlock Rise of the Tomb Raider or a trio of games: Sniper Elite 4, Tales of Berseria, and Staxel.
Rise of the Tomb Raider has appeared in Humble Monthly before, but if you haven't played it, it's a good choice. Not only is it an excellent game (see our 9/10 Rise of the Tomb Raider review), but you'd probably have time to finish it before Shadow of the Tomb Raider comes out on September 14. In either case, a handful of additional games will be revealed at the end of the month (though occasionally a game or two will unlock a couple weeks in).
The games come in the form of Steam codes that are saved in your Humble account. Unlike some other game subscription services, you get to keep and play your Humble Monthly games forever, whether you have an active subscription or not.
Humble Monthly subscribers get a number of additional bonuses as well. All active subscribers get 10% off every game in the Humble Store and access to subscriber-only deals. You also get access to the Humble Trove, a collection of mostly well-received indie games you can play as long as your subscription lasts. You get slightly better deals for subscribing for three or six months at a time. Subscribe for a full year, and you get a free month. Plus, 5% of Humble's proceeds go to charity.
All in all, Humble Monthly is one of the best deals in PC gaming. And with a choice of early unlocks for September, you have more control than usual over which games you receive.