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Kevin Antonsen, known online as CortexRoK, is a Rise of Kingdoms creator who delivers highly practical strategy guides, account reviews, and update breakdowns for a dedicated gaming audience. His content is ideal for brands looking to reach engaged mobile gamers through consistent, niche expertise and strong community trust.
I'm a mobile gaming youtube live streamer
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Kevin Antonsen promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Kevin Antonsen make a live appearance at your next event
Brands can sponsor Kevin Antonsen on OpenSponsorship by creating a free account, browsing Kevin Antonsen's profile, and sending a sponsorship proposal for social posts, appearances, or integrated campaigns. OpenSponsorship handles messaging, deliverables, and deal terms in one platform so you can connect directly with this content creator.
Kevin Antonsen is listed on OpenSponsorship and available for brand sponsorships. Brands can review campaign packages, audience details, and pricing on this profile, then submit a proposal to start a partnership with this content creator.
According to OpenSponsorship, estimated pricing to sponsor Kevin Antonsen starts at $4,000 for a social media post, $6,000 for a appearance and $36,000 for a brand ambassador campaign. Final rates depend on deliverables, usage rights, and campaign scope. Sign up on OpenSponsorship to view packages and send a proposal.
According to OpenSponsorship, Kevin Antonsen's audience includes interests including Computer Gaming, Technology, based in Oslo, Oslo, Norway. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.

How do you measure influencer marketing ROI when half the numbers social media gives you are vanity metrics? It is the question brands ask us most, and it came up again when I joined Massimo Marinelli on the Berkida Ventures Podcast. After more than ten years and thousands of brand deals with athletes and creators at OpenSponsorship, here is how we think about it, and the framework we use with our clients.
October 28, 2026