Description: Play the best online Tower Defense 2020 free at Friv Strategy Games. Including Tower Defense 2020, Friv Normal, Friv Games, Friv4school online! Tower Defense 2020 has free games that you can play Friv games online. Friv 2443 new free games are always being added. Join the fun and let your boys and girls be entertained for hours in Tower Defense 2020 on FrivNormal.com!