Minecraft has only been around since 2009, but it's the biggest game on YouTube in its 10 years of existence.

Think about that for a minute. YouTube's list of the top 10 biggest games on the site, based on a decade's worth of viewing hours, features long-running game franchises like Call of Duty and Grand Theft Auto. But it's six-year-old Minecraft that comes out on top.

YouTube released the list in honor of Let's Play Day on Wednesday, which celebrates the practice of recording gameplay sessions with voiceover and sharing it with the world. Let's Play videos, commonly referred to as LPs, have skyrocketed in popularity in recent years, thanks in large part to increasingly sure-footed streaming technology and gaming hardware that makes it easy to record and share footage.

Grand Theft Auto falls just behind Minecraft at No. 2 on the list. Here's the full list:

Minecraft Graft Theft Auto League of Legends Call of Duty (series) FIFA (series) Garry's Mod (an interactive sandbox built using Half-Life 2's tech) The Sims (series) Five Nights at Freddy's (series) Puzzles and Dragons Dota 2

Of the 10 titles/franchises listed, only five have existed for more than 10 years.< em>League of Legends is roughly the same age as Minecraft, but Puzzles & Dragons, Dota 2 and Five Nights at Freddy's are much younger; they were released in 2012, 2013 and 2014, respectively. That says as much about the skyrocketing popularity of game sharing on YouTube and similar services as it does about the widespread interest in the individual games.

We're big fans of Mindcrack, a collective of LPers that started out producing Minecraft videos but expanded over time to include a growing roster of contributors and any number of games. Together, the group's 41,000-plus videos have amassed more than 1.5 billion views on YouTube, according to its website.

Felix Kjellberg, better known by his YouTube handle PewDiePie, is perhaps the most well-known LPer operating today. The 25-year-old Swede joined YouTube in 2010, and since then, has amassed more subscribers than any other channel (36.5 million at present). To date, his videos have been viewed more than 8.8 billion times; he's since turned off the YouTube comments on his videos.

Individuals like PewDiePie are a new breed of celebrity whose success is propelled primarily by social media shares and other grassroots promotional techniques. It's a testament to the Internet's unique ability to connect large, frequently disparate groups around common interests. YouTube is a key cog in the machine that powers Internet celebrity, and this "biggest games" list is an enlightening glimpse into what plays best with the site's global audience of gamers.