Show HN: WordLines – A zero-knowledge proof-based blockchain puzzle game

Hi folks, I recently made a small game using Zero-Knowledge proofs that awards players Ethereum NFTs for successfully solving a puzzle. Zero-Knowledge proofs are a pretty new crypto idea with lots of cool applications like this one.

I've also recently written up a long-form post on the theory behind ZK proofs that might be interesting to folks here: https://nibnalin.me/dust-nib/a-succinct-story-of-zero-knowle...

Congrats for the impressive technical feat!

One (maybe naive) question: at a certain point in the demo, Rainbow wallet forecasts a 400$ gas fee. Does this mean that in order to play this game, I need to spend hundreds of dollars for each round? I know that there are many other chains that are vastly more efficient, plus all the L2 optimizations and all. I was just wondering if this is actually the case in this particular instance or I'm missing something important.

I don’t really see the reason why one would want to do that on the ETH mainnet. If you just want to play the game it’s trivial to spin up a private network and play for free.

As a technical demonstration, this little project is really interesting. There's only one aspect I'd like to poke at a bit:

"Mobile gaming is more interesting than PC/web clients to me. If nothing it means developers can use push notifications and make games a much more mindless/regular part of players' day vs. depending on users to actively seek out their game on their computers."

This is one of the dark patterns that are actively eating away at our attention spans, and should be avoided. Develop ethically, please.

How much does is cost in gas to submit the answer?