Storing large chunks of data on the blockchain has been proven to cost a lot. Hence Gamify.
This is a decentralized application which implements IPFS and aeternity blockchain to handle the upload, purchase and storage of quality games on the blockchain. It makes use of IPFS to store heavy size of games and ensures speed and transfer of this data to anyone anywhere in the world. The hashes of these games are stored on the blockchain to avoid tamper or change. Storage on IPFS is totally cost free
The smart contract handles the request and purchase of these games. Here is a link to the project.