[POiNTx]

Definitely possible. Tick rate isn't the problem, Elixir is very performant. Just the predictive elements are an issue if you're working with 2 different languages. I'd go with Gleam from the start and look into compiling to js.

[spiderice]

Don't you lose a lot of the niceties of Elixir when switching to Gleam, just because Gleam is a younger project? LiveView would be the big one I'm thinking of. Do you see that as a worthy trade?

[POiNTx]

You can still use LiveView/Phoenix/Elixir, but have your game logic be in Gleam. I haven't used it though so I could be wrong here.

A little bit more about it here: https://katafrakt.me/2021/10/13/app-with-elixir-business-log...

You'd call Gleam code like this inside Elixir:

`:game.move(game, player_1, :left)`

And you'd receive an Elixir map `%Game{}` which you can then use in LiveView. If that makes sense.