Below is the best free game ever :I
Pokemon showdown is a free online game with unique features that other games don't have. There is over 20 tiers you can play which are all entertaining and free, it has tiers from LC to OU and 712 playable characters/pokemon. As long as you have a pc, i pad or anything capable of accessing the internet you can play it for free! Its main tiers are OU (over used), UU (under used), RU (rarely used), NU (never used), OU mono type (over mono/used one type) and ubers. Below is some gameplay without the 3D models the game has.