Despite the limited release, the album received strong digital downloads, and debuted at number four on the US Billboard 200 chart, selling 61,000 copies in its first week.

The ‘Careless World’ tour began in Salt Lake City, Utah at the Maverick Center on February 17, 2012, and ended in New Orleans, at the Howlin Wolf on April 15, 2012.

[7] David Jeffries of Allmusic gave the album three and a half stars out of five, saying "Growth since his previous effort is obvious, both for the good (writing skills) and an arguable definition of bad.

"[15] Anupa Mistry of Now gave the album three out of five stars, saying "Careless World isn’t just Rack City plus 20 filler songs, thanks in large part to a phenomenal production team.

"[10] Adam Fleischer of XXL gave the album an XL, saying "For all its highlights—and there are many— Careless World: Rise of the Last King still feels disjointed at moments.

"[17] Edwin Ortiz of HipHopDX gave the album three and a half stars out of five, saying "Careless World perfectly reflects Tyga and the creative traits that he possesses.

"[9] David Amidon of PopMatters gave the album a four out of ten, saying "Careless World is what it is, and while that may not be much it’s professional and adequate enough that – daunting as its length may be – his fans should be satisfied and his detractors should be relieved to continue having little reason to pay him any mind.

Pharrell Williams, Wale, Nas and J. Cole all guest, and those who don't are there in spirit: "Do It All" apes Kanye West's "Power," and "Black Crowns" ends with a voicemail message from Mom that would make even Drake squirt.

[18] Careless World: Rise of the Last King debuted at number four on the US Billboard 200, with first-week sales of 61,000 copies despite a limited release in retail stores due to the uncleared sample recall.