Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-263029 and 333-253789 on Form S-8 of our reports dated February 28, 2023, relating to the financial statements of Roblox Corporation, and the effectiveness of Roblox Corporation’s internal control over financial reporting appearing in this Annual Report on Form 10-K for the year ended December 31, 2022.

/s/ DELOITTE & TOUCHE LLP

San Jose, California
February 28, 2023