Amazon Luna adds Space Grunts, Palindrome Syndrome: Escape Room, and Hot Brass to its free game rotation, bringing May’s total to 17 new titles and extending the service’s appeal to roguelike, puzzle, and tactical SWAT fans.
Amazon’s cloud‑gaming platform Luna has grown its free game roster again, adding three titles from GOG that diversify the service’s genre mix. The new offerings—Space Grunts, Palindrome Syndrome: Escape Room and Hot Brass—push the total number of fresh games introduced in May to 17, reinforcing Luna’s strategy of rotating a broad selection of indie and niche titles for Prime members.

What’s new on Luna?
| Game | Genre | Key Features | Claim deadline |
|---|---|---|---|
| Space Grunts (GOG) | Turn‑based roguelike | 2476‑era moon base, three distinct classes (Leader, Enforcer, Tech Junky), procedural levels, tactical combat against aliens and drones | 19 August 2026 |
| Palindrome Syndrome: Escape Room (GOG) | Sci‑fi puzzle / exploration | Memory‑loss narrative, ship‑wide logic puzzles, clue hunting, password decoding | 20 June 2026 |
| Hot Brass (GOG) | Tactical SWAT action | Solo or 4‑player co‑op, hostage‑rescue missions, dynamic environment destruction, extensive gear load‑out | 24 June 2026 |
Space Grunts
Space Grunts drops players into a fast‑paced, turn‑based battlefield where each squad member’s class dictates the tactical options available. The Leader can issue command buffs, the Enforcer excels at close‑range suppression, and the Tech Junky manipulates enemy drones. Levels are procedurally generated, meaning every run presents a fresh layout of corridors, security systems, and alien encounters. The game’s pixel‑art aesthetic masks a surprisingly deep combat system that rewards positioning and ability synergy.
Palindrome Syndrome: Escape Room
In Palindrome Syndrome, the player awakens alone on a derelict spacecraft with no memory of their identity. The experience leans heavily on environmental storytelling; every console, log file, and broken panel offers a fragment of the larger mystery. Puzzle design is methodical, requiring players to cross‑reference clues from disparate rooms to unlock new sections of the ship. The game’s pacing is deliberately slow, encouraging thoughtful exploration over reflex‑driven action.
Hot Brass
Hot Brass brings tactical SWAT scenarios to Luna’s cloud platform, supporting both solo play and up to four players in cooperative mode. Missions range from hostage rescues to bomb defusal, each demanding careful entry point selection, breaching tactics, and equipment management. The game’s physics engine allows players to breach walls, collapse ceilings, and create improvised sightlines, adding a layer of strategic depth rarely seen in browser‑based titles.
How the new titles compare to Luna’s existing catalog
Luna’s current free rotation includes titles like Hades, Celeste and Control. Those games are primarily single‑player experiences with strong narrative or platforming focus. The three new additions broaden the library in three distinct directions:
- Roguelike depth – Space Grunts offers replayability through procedural generation, a contrast to the fixed‑level design of most existing Luna games.
- Puzzle‑driven narrative – Palindrome Syndrome provides a slower, investigative experience that complements the action‑heavy titles already available.
- Co‑op tactical action – Hot Brass is the first Luna free‑game that emphasizes multiplayer coordination, positioning the service as a potential hub for casual couch‑co‑op sessions.
Pricing remains unchanged: all three titles are free to claim for Amazon Prime members, but each carries an expiration date. After the deadline, the games disappear from the free library and must be purchased again through GOG if players wish to retain access.
Who should care?
- Roguelike enthusiasts – If you enjoy the strategic planning of FTL or Into the Breach, Space Grunts offers a fresh, turn‑based challenge with a sci‑fi veneer.
- Puzzle lovers – Fans of escape‑room titles such as The Room series will appreciate the methodical clue‑hunting in Palindrome Syndrome.
- Co‑op tactical fans – Groups looking for a quick, drop‑in SWAT experience can jump into Hot Brass without the hardware overhead of a full‑blown PC install.
Overall, the three additions reinforce Luna’s commitment to variety, giving Prime members a reason to check the platform regularly for new, genre‑spanning experiences.
Sources: Amazon Luna announcement, GOG store pages for each title.

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