Wǒmen yóuxì lǐ de gōnghuì yǒu wǔshí duō gè chéngyuán.
Our guild in the game has over fifty members.
Tips
usage
公会 is used for historical trade guilds and modern gaming guilds alike. For labor unions, use 工会 (gōnghuì) instead — same pronunciation but different first character.
mistakes
Don't confuse 公会 (guild/association) with 工会 (labor union). They sound identical but 公 means 'public' while 工 means 'worker'.