BattleRing

a game that has challenges , this game is offline

but you can play it with your friend in the same device

this game is for windows , android , linux , and in the browser (download it for good experience) this game contains 10 games , enjoy :)

fact: you can play it alone by going to settings and enabling one player option 

press F11 for full screen

sorry if there some glitches , i will solve it in the future :p