you could try block post on poki, no download (not legacy version), they have a bomb mode like counter strike. vedy good except only Russia servers so I have 300 ping lowest and 600 avg but for whatever reason it's playable. I played 1 year on a old laptop b4 the Chromebook n b4 narrow one but you cannot make an acc on poki, and clear cache will reset xp, skins, gun upgrades, etc. I still remember my 1v3 AWP clutch hehe (3/4 skill 1/4 luck)