CM-SS13

About

CM-SS13 is a multiplayer role playing game. It was developed by CM-SS13 Devs and was released on February 6, 2026. It received mostly positive reviews from players.

The year is 2182. High Command has dispatched the USS Almayer to the frontier. You are a member of the Falling Falcons - 2nd Company, 2nd Battalion, 4th Brigade. Your orders are simple: Respond to an unknown distress signal, secure the colony, and neutralise any threats. But on the rim of known space, nothing is ever simple. BYOND: Build Your Own Net DreamBuilt on the ancient, accursed, yet st…

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74%

Audience ScoreBased on 87 reviews

gameplay4 positive mentions

stability1 negative mentions

Deep and complex asymmetrical gameplay offering diverse roles for marines and xenomorphs with significant strategic and cooperative elements.
Strong immersion with extensive interactive systems like logistics, medical treatment, and command coordination lending a unique multiplayer experience.
Free-to-play with a dedicated community and ongoing development supported by volunteers, including helpful mentors and frequent updates.

Steep learning curve combined with outdated, clunky controls and a dated user interface that can be frustrating for new players.
Toxic and problematic staff culture marked by inconsistent rule enforcement, favoritism, censorship, and allegations of abuse and misconduct.
Technical issues such as lag, bugs, and server instability persist due to the aged game engine and BYOND platform dependencies.

gameplay
24 mentions Positive Neutral Negative
17%
70%
13%
The gameplay of this asymmetric, sci-fi PvP game offers a deep and unique experience, especially for marine players, with a strong emphasis on teamwork, military roleplay, and continuous mechanical evolution driven by an active community. While it boasts high replayability and emergent gameplay, the steep learning curve and frequent changes can be challenging, and some players criticize balance issues—particularly regarding alien gameplay. Overall, it delivers an engaging, addictive loop blending tactical combat with roleplay elements.
- “Cm-ss13 is a descendent of the cult classic game ss13, and inherits a lot of things from that game, spinning the engine from a social deduction murder mystery type experience into an asymmetric TDM game with an unbelievable amount of depth and width in its mechanics and how they interact.”
- “It’s completely open source, community coded and administrated, which means the game is always mechanically changing, making it incredibly addictive with new stuff to discover every time you come back.”
- “The gameplay loop is a tug of war between two factions with roleplay mixed in, offering a genuinely amazing and unique experience.”
- “Unless you have 40 macros set up and 3 wifi routers, you can't win as a MOBA xeno; the combo gameplay completely ruins xenos and doesn't work in SS13 at all.”
- “The marine-biased developers just keep messing around with the xenos' meta, trying to turn the gameplay into Smash Bros Ultimate without playing a single xeno round themselves.”
- “This game doesn't work on a 20-year-old 2D spaceman game engine and turns into a powerpoint slideshow after 10 minutes of gameplay.”
graphics
5 mentions Positive Neutral Negative
60%
20%
20%
The graphics are a distinct, pixelated style that may be an acquired taste, appreciated for its aesthetic by some but seen as outdated or niche by others. While visually simple, the UI and graphical presentation can feel unpolished to new players. Additionally, concerns about inappropriate content on servers are unrelated to the graphics but noted as a warning.
- “You can see the individual pixels on the screen, but the aesthetic is used quite well.”
- “Overall great game, the graphics and UI are definitely an acquired taste though.”
- “I think that I have had less lag and also the graphics have improved tenfold.”
story
2 mentions Positive Neutral Negative
100%
The story incorporates role-playing elements that enable collaborative storytelling, adding depth and engagement. Players can assume roles like a researcher, unlocking new chemicals and equipment to support the mission. This approach offers a unique narrative experience that some may find enjoyable.
- “On top of this, there are also roleplay elements present, which allow for collaborative storytelling that you might end up liking.”
- “You can play as a researcher, trying to unlock new chemicals and equipment to aid the mission.”
replayability
1 mentions Positive Neutral Negative
100%
The game offers strong replayability potential through its engaging gameplay loop and sci-fi military roleplay, though its extremely difficult barrier of entry may limit accessibility for some players.
stability
1 mentions Positive Neutral Negative
100%
The game's stability is typical of classic SS13 titles, characterized by frequent bugs and a generally unpolished experience.
- “It's also, in classic SS13 style, perpetually in a state of unpolished bugginess.”
music
1 mentions Positive Neutral Negative
100%
The music in the game faithfully recreates the original soundtrack from the films and licensed games, enhancing the authentic atmosphere alongside iconic sounds and assets.