Architecting Play To Earn NFT Games : Axie Infinity Case Study

I get asked this questions often in regards to connecting Unity or Unreal Games and the Blockchain and doing so securely. So at a architecture level, I wanted to discuss how to properly architect play to earn games so that you are resistant to cheating / hacking attempts by players. At the end of the day, when it comes to networking you should always assume your game can get hacked and so a client - server - blockchain architecture is necessary to facilitate a secure play to earn game.
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0:00 Motivation
1:48 Axie Infinity
3:55 Client Blockchain Scenario
5:57 Game State Simulation
9:12 Tokenomics
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[@niomartinez]

Can you make an architectural breakdown on how games does their thing. Offchain in-game character with stats -> Mint to actual NFT. I'd like to understand how they're doing it behind the scenes, I'm a bit stuck on the ipfs uri part of the in-game characters's metadata into token uri stuff.

[@FusedVR]

ipfs is just a decentralized way to store metadata but tbh not really required.

[@alexisdavidson6770]

Hey man thanks for the content. So this means that fast-paced games that require quick and smooth inputs are not possible? It would make sense as we see CS:GO and any competitive game that is still being cheated on even nowadays

[@FusedVR]

right, not if you want to verify everything server side. you could verify everything after the gameplay is finished but that doesnt prevent cheating from happening in real time

[@Brandon-si4qf]

Thank you this video helped a lot I was thinking of a very similar implementation. Could you give an example of this implementation in a video? Also would filecoin work as a intermediary between unity and polygon?

[@FusedVR]

yeah maybe in a month or so I can discuss some learnings from a project im consulting on. regarding filecoin, could work for storage however, probably not ideal for real time applications

[@Brandon-si4qf]

@@FusedVR ok thank you!

[@eddietrevino9024]

Hello fused! Been really enjoying your content. Trying to build a vision I have for a project as well, however been trying to do everything on my own and it’s a lot of learning on top of university stuff are there any tips you can give me ?

[@eddietrevino9024]

I’ve been specifically having trouble with : Having VR users port in wallet owned NFTs as interactive materials (ie. in your “building a Robin Hood VR game “ users who own “the bow NFT”can use the bow ) and making that 3D model hopefully interoperable enough to be able to translate across other builders in their games but not sure if there’s a universal way of achieving that across metaverses And using a “connect wallet” as a sign in method for VR applications

[@FusedVR]

@@eddietrevino9024 have you take a look at the FusedVR Crypto APIs? they were designed exactly for the use case you are describing.

[@eddietrevino9024]

@@FusedVR That’s right! Thank you for that and for the quick response Ill check that out asap!

[@MaxIme555]

Hi, very interesting, please make more of those NFT games architecture videos. I'm creating a prototype at the moment, and my approach to avoid cheating would be that let's say there are 4 players, all 4 players send the final state of the game to the blockchain. If all 4 agree on who won, the winner gets rewarded. If 2 or more players announced that they won, it means there was a cheater in the game. Do you think that concept could work?

[@FusedVR]

couple things: 1. what happens if two players announce they won? no rewards? in that case, what prevents a loser from saying they won just to spite the winner? 2. do you have any PvE rewards? if so, this wouldn't work

[@MaxIme555]

​@@FusedVR I just hope there won't be that many cheaters and it will be a one off... There will still be rewards, but just cosmetics / rewards with no monetary value. The problem with the approach of having an oracle recreating the game state is that it works for card games or any turn based, but for a real-time physics mobile game built with unity this approach is impossible

[@FusedVR]

@@MaxIme555 yeah I dont think there is a clean solution for physics based games. I think Photon was trying to solve for this with Quantum, so I wouldnt say impossible, but very difficult for sure.

[@MaxIme555]

@@FusedVR Thanks for the info, I'm using Photon for multiplayer so will have a look at Quantum