The games included for unlimited access to EA play while you're subscribed are "free", or available to subscribers to play. New releases for up to ten hours, old games are free as long as you're subscribed. Fair warning: when you subscribe to EA play on Steam, you only get access to titles on Steam.
EA Play is a gaming membership that gives you access to some of EA's best games. Your membership comes with perks, like: Trying brand new games for a limited time before they launch. Saving 10% on EA digital purchases - like full games, expansion packs, and in-game currency.