Amazon adds four more free games to Luna

Earlier this month, Amazon added 15 new titles to Luna (formerly Prime Gaming) for subscribers to download and play. The company has now added four more games to the service, bringing the total number of new additions in June 2026 to 19 so far.

Four new free games added to Amazon Luna

The first game is Tested on Humans: Escape Room (GOG), which places you inside a mysterious research facility where you wake up as a test subject with no clear idea of how you got there. The experience revolves around solving puzzles, uncovering hidden clues, and exploring multiple rooms throughout the facility. Players will need to use logic to crack codes, investigate their surroundings, and slowly piece together the story behind the experiments taking place in the building. 

The second game is Sin Slayers: Reign of the 8th (GOG), which combines RPG mechanics with roguelite progression and challenging turn-based combat. Set in a world consumed by darkness, the game asks players to lead a group of lost souls through dangerous regions filled with monsters and powerful bosses.

One of its most interesting features is the Sinometer system. Players can choose to commit sinful actions during their journey, which can lead to greater rewards and stronger loot. However, those choices also make the world more dangerous, attracting tougher enemies and eventually the terrifying Sin Lords.

The third game is G.I. Joe: Wrath of Cobra (Epic Games Store). Inspired by the iconic 1980s cartoon and toy line, the game puts players in control of legendary heroes such as Duke, Scarlett, Roadblock, and Snake Eyes as they battle Cobra's forces. The gameplay focuses on side-scrolling action, allowing players to punch, kick, and blast their way through waves of enemies. Each hero comes with their own moves, special attacks, and playstyle, allowing players to experiment with different characters. 

Finally, the fourth game is Paradise Killer (GOG), which offers a very different experience from the other three games. It is an open-world detective adventure set on a strange island outside reality, where a series of murders threatens the future of an entire civilization. Players take control of Lady Love Dies, an investigator brought back from exile to solve the crime. Unlike traditional detective games, Paradise Killer gives players complete freedom to explore the island, gather evidence, question suspects, and form their own conclusions.