This month’s Prime Gaming games include a mix of classic strategy games, stealth games, and indie games that are a little different from the rest.
The following free-of-cost round from Amazon Prime Gaming in August 2025 shows that the service is about more than just new games. It’s also about games that are worth playing again, uncovering again, and adding to your growing list of games to play. You can get these free things until August 2025. For those who already have Amazon Prime, these games are basically yours, so there’s no reason to leave them lying around.
In addition to the renowned stealth game Thief: Definitive Edition, which was legendary back when it just got released and helped an entire genre become famous, there is also Sid Meier’s Civilization III Complete, which is a definitive edition of one of the most beloved strategy games ever created, and The Academy: The First Riddle, which is a mystery adventure that can be played through the Amazon Games app. It’s still crazy to think we get to play these games for free.
There are still a lot of surprises to be found this month, like the release of Fate: The Traitor Soul on August 14th, the chaotic cooperative mischief of Filthy Animals: Heist Simulator (Epic Games Store), the heartfelt puzzle adventure Tin Hearts, and the dark fantasy Necro King.

On the 21st of August, Silverbox Classics and the whimsical Labyrinth City will be available for purchase. On the 28th of August, Heroes of Loot 2, Fantasy Empires, and City Legends: The Ghost of Misty Hill – Collector’s Edition (Legacy Games) will be available for purchase.
Although it’s easier to ignore these Prime Gaming benefits, doing so is the same thing as wasting money. If you don’t plan on playing the game right away, you should still claim the codes, use them on GOG, Epic, or Amazon Games, and add more games to your collection so that you can play them later. These offers are amazing, so claim them before they vanish forever.