A lot of Roblox games are getting translated to other languages to encourage non-english-speaking players to play their game.
I was wondering, what would be the top languages to prioritize translation to that would be the most effective in order to get more players?
I’m no translator but I would go with more popular languages, like spanish.
I reccommend you to translate the game in Russian, French, German and Spanish.
I am by far not a Translator but I think some good languages to add would be: German, French, Spanish and Russian. What type of game is it?
Focus on the more widely used and most supported (by Roblox) languages. Start out with Spanish, French, and German; and so on.
From the most spoken to the least, according to the robloxians I’ve met:
Spanish, Portuguese, French, German, Dutch, Russian, Italian, Chinese, Korean.
Of course, the order might vary slightly for other people.
I think Spanish, Russian, French, and German are the most useful out of these. I am fluent in Korean and I don’t know many Korean natives and I only know a few Italian speakers. :>
I really recommend Portuguese and Spanish, I live in Brazil and it’s clear how much Roblox is popular around here 
I’ll give you something new, with Roblox now expanding into China, Chinese, your game might be one of the first.
I’d say you should go with French, Spanish, and possibly German if you want.
Considering there has been a huge trend over the past few years of India getting more and more online, I would recommend Hindi as well, considering it is also the 3rd most spoken language in the world.