In 2015, Garrett created a scripted edutainment series called Wonder Quest in collaboration with Maker Studios and Disney.

The show was filmed in Minecraft and features educational content designed for children to watch in school.

Garrett has voiced the Stampy character in the video game Minecraft: Story Mode and has made guest appearances on several television programmes with CBBC and Disney XD.

He began making Minecraft Let's Play videos in 2012, including his most popular series, Stampy's Lovely World.

[16] He attributed some of his popularity to his then-daily upload schedule, saying that this ensured his audience knew they could return regularly to find new content to watch.

[17] In 2014, he reported to record, edit, and upload his videos himself, while delegating his business affairs to Maker Studios.

[16] The Stampylonghead channel was once mistakenly terminated by YouTube in December 2013 due to false reports of community guidelines violations.

[19] On 25 April 2015, Garrett launched a spin-off edutainment YouTube series, Wonder Quest, in collaboration with Maker Studios.

[29] In 2018, Garrett broke a Guinness World Record for the fastest time to make and display ten cakes in Minecraft, which he did in three minutes and 51 seconds.

[30] In October 2018, Garrett announced he would be taking a break from his Minecraft content to spend more time writing books.

[32] On 13 November 2021, Garrett released the first episode of a podcast entitled The Bonus Points with longtime friend Oli Guy.

[citation needed] On 21 October 2023, Garrett released the final episode of Stampy's Lovely World, titled "Thanks For Watching".

[33][34][35] Garrett stated that although his personal channels would be inactive following the series' conclusion, he would continue working on his podcast The Bonus Points.

[17] On 28 July 2019, Garrett married Kye Bates, a fellow Minecraft YouTuber known online as Sqaishey Quack.