According to the company, members can keep these Free Games with Prime titles forever.
Twitch has routinely given away free games and in-game content to Twitch Prime subscribers in the past. However, for the rest of the month afterward, Twitch Prime users will have access to download SUPERHOT, Shadow Tactics, Tales from Candlekeep, Oxenfree and Mr. The eight titles of the company's Indie Amplifier initiative will be given out over the next few months in the program, including victor Shadow Tactics and Tales from Candlekeep: Tomb of Annihilation. In the coming months, you can expect to see the remainder of the Indie Amplifier games, such as Tumblestone and High Hell. So if you aren't a Twitch Prime member yet, perhaps now might be a good time to consider signing up. In April, the next collection of games will be: Dubwars, Kingsway, SteamWorld Dig 2, Tales from the Borderlands, and Tokyo 42.
As with previous freebies, the games offered in this manner will be yours to keep permanently, though you'll presumably need to use the Twitch desktop app in order to grab them.
It's been more than a year since Amazon first tapped into Twitch's customer base with perks to improve their experience.
One other note, which may be exciting if true, is that Free Games with Prime are unlocked for Twitch users "forever".