The game trials will allow you to play Mass Effect Andromeda as much as you want, where Star Wars Battlefront 2 and Need for Speed: Payback will give you Play First Trials. It is now possible to enjoy the entire trilogy on Origin Access on PC or EA Access on Xbox One through backwards compatibility.
EA has revealed what is going to be arriving on EA Access over the next couple of months. Bring together a team of colorful characters, discover new worlds and unravel the ultimate secret at the heart of this odd new system.
To editorialize for a moment, both Dead Space 3 and Mass Effect Andromeda are criminally underrated titles, and absolutely deserve your time. Journey across the icy planet of Tau Volantis, overcoming the violent wilderness and an army of deadly enemies to save mankind from the impending apocalypse. Dead Space 3 will also be added, but only for EA Access. Lastly, the Xbox One version of The Sims 4 will have an early trial either before or on its release date. Payback, on the other hand, will be playable ahead of launch for a total of 10 hours - roughly the standard amount. EA didn't reveal what players will be able try in Battlefront II, how long they'll be able to play for or when they'll be able to play it, only saying (obviously) that they'll be able to begin playing "before launch day".
EA Access is available for Xbox One owners with an active subscription, while Origin Access is the equivalent service for PC users on Origin.