The Very Best 20 Free Online Gaming Websites You've Got to Try... 1) Kongregate.Com. Undoubtedly Kongregate hosts some of the best free PC games to play online. 2) FOG.com. FOG (FreeOnlineGames) has a ton of online games categorized by over 100 tags. 4) AOL games. Solitaire Racing or Bird Word by Mahjongg? 5) BigFishGames. 6) Shockwave. 7) MiniClip. 8) FreeArcade. 9) Armor Games.