It seems you are looking for a "deep" or aesthetic text style often associated with the game (commonly referred to as "agariocom" in niche design circles or as a typo).
"In the petri dish, we are all born equal—small, vulnerable, and hopeful. But survival demands sacrifice. To grow, you must consume the ones you once called peers. In the end, the largest cells do not win; they simply become the biggest targets. We are all just organic matter waiting to be split." agariocom
This is the most common request. Players use fancy fonts to make their nicknames look cool or unreadable in the game chat. Here are examples of "Agar.io" written in deep/double-struck styles: It seems you are looking for a "deep"
The core appeal of lies in its deceptively simple biological theme—acting as a cell in a Petri dish—combined with high-stakes multiplayer strategy. Key Gameplay Features To grow, you must consume the ones you once called peers