Aside from your usual in game loot and monthly Twitch channel subscription. Amazons newly renamed Prime Gaming now offers full games which are free to download. The selection is not massive at the moment but aims to deliver more content each month.
With a similar layout to Xbox Game Pass, there are a number of games which are released each month and also shows you which of these games will be leaving Prime Gaming soon.
At this moment there are 32 games available to claim and download, alot of these look to be your retro games such as Metal Slug and King of Monsters and a variety of SNK classics. Prime Gaming also has a small collection of your more recent hits such as Layers of Fear, Silver Chains and even Bridge Constructor.
Visit the link below to see what is available now from Prime Gaming