I found an interesting project based on the blockchain Vreo.io. It provides new in-game advertising opportunities. Due to this, the user's interface continues to work stably without interrupting for advertising breaks. Moreover, the interests of all parties are taken into account. Developers of small games can attract investments and create high-quality products, for advertisers this project will be useful due to the expansion of advertising opportunities and selected target audience, and gamers will be able to receive quality products cheaper, besides they also receive income from the ads they watched, without interrupting the gameplay. It seems the product meets the gaming and advertising industries' needs. Here is their link at bitcointalk https://bitcointalk.org/index.php?topic=2886707