Epic Games Store free mystery game for December 24, 2025 REVEALED
(Courtesy : Striking Distance Studios)
The Callisto Protocol
The gamers and fans are pretty hyped as Epic Games Store has announced another free mystery game for December 24, 2025, The Callisto Protocol.
This is a survival horror space game, inspired by Dead Space, and is now claimable from starting 9:00 AM PST (Dec 24, 2025) for a 24-hour window. Let’s check out more details in this article.
The Callisto Protocol: Story & Gameplay
This game is set 300 years forward on Jupiter’s moon Callisto and players play as Jacob Lee, a prisoner in Black Iron Prison.
A rare outbreak transforms inmates into hideous creatures, throwing the facility into pandemonium. Discover Callisto’s dark mysteries while battling in a collapsing hellscape.
More dread atmospheric environments, scarce resources to survive, tight corridors and brutal combat that includes melee, guns and gravity guns for CC.
Dismember foes strategically; each conflict is a frantic dance. Callisto’s desolate solitude heightens psychological fear, rivaling Dead Space’s claustrophobia.
This game was launched in 2022 and received some mixed reviews on Steam. Still, a pretty good game to play for free at cost.
How to claim The Callisto Protocol for free?
Here’s how you can get the game for free:
- Hit store.epicgames.com/free-games.
- Click “Get” on Callisto Protocol (9 AM PST Dec 24–9 AM PST Dec 25).
- Now, this game will be yours forever in the library.
Previous Holiday Mystery Games
Here are all the free mystery games till now:
| Date | Game |
|---|---|
| Dec 11–18 | Hogwarts Legacy |
| Dec 18 | Jotunnslayer: Hordes of Hel |
| Dec 19 | Eternights |
| Dec 20 | Blood West |
| Dec 21 | Sorry We’re Closed |
| Dec 22 | Paradise Killer |
| Dec 23 | Bloodstained: Ritual of the Night |
FAQs
When can I claim The Callisto Protocol free?
Dec 24, 9:00 AM PST – Dec 25, 9:00 AM PST (24 hours).
What’s Callisto Protocol about?
Jacob Lee fights mutated inmates in a chaotic Callisto prison, uncovering secrets.
Similar games to Callisto?
Dead Space series—same tense survival horror vibe.
For more updates, follow Khel Now Gaming on Facebook, Twitter, and Instagram; download the Khel Now Android App or IOS App and join our community on Telegram & Whatsapp.
Mahaksh Chauhan is a passionate gaming journalist who loves for old-school RPGs and turn-based games. With a keen eye for storytelling and a deep understanding of game mechanics, Mahaksh brings an unique perspective to the world of gaming. Inspired by classics like Persona, Red Dead Redemption 2, and Skyrim, Mahaksh is dedicated in sharing the magic of games with readers. When not writing or gaming, Mahaksh can be found cheering on WWE superstars or watching his favourite Anime.