Looking for a free easy, competitive and online game to play on free time (steam not an option)

Hi I am looking for a **free ** game with simple mechanics, competitive and online is a plus. plus suggest games that don't require steam, I don't want to install that software

I used to play vanis.io but people spoiled it by playing in teams while I like playing solo, while other games of the genre (slither, agar, paper.io) couldn't stick with them

I played mindustry, and wasted tens of hours, until I found out That I was playing campaigns without having unlocked enough research to beat the master, the game didn't have the right mechanisms to orient me to the winnable campaigns, and I ended hating it for that.

I am a simple guy looking for a simple game to distress (not candy crush simple)