
- BGG rank
- BGG #559
- BGG rating
- 7.9
Sword & Sorcery: Immortal Souls
- 1–5 players
- 60–150 min
- Complexity 4.1/5
- 2017

Rules assistance for Galaxy Defenders: Extinction Protocol
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Galaxy Defenders: Extinction Protocol is an expansion for Galaxy Defenders released in 2015 for 1–5 players, 120 minutes per game, and ages 12 and up. It was designed by Simone Romano and Nunzio Surace and its main mechanics are Variable Player Powers, Dice Rolling, and Modular Board.
In Galaxy Defenders: Extinction Protocol, an expansion for Galaxy Defenders, the agents head to the home planet of the invaders to fight the final battle to save the Galaxy from extinction. Armed with a new generation of weapons and wearing awesome Power Armor, the agents are prepared to fight the worst enemy they have ever faced. New Features: In Extinction Protocol, the journey through the six missions begins as the Agents reach the Alien planet. To fight their enemy, they must enter into a darkness made of caves and corridors, across underground lakes, through alien temples, and face the ultimate challenge in the terrible Queen’s chamber. The underground of the alien planet is formed by thousands of narrowing corridors and caves. To properly represent this new setting, a new system of modular tiles creates the game board, using smaller tiles with a variable number of areas. The tiles remain fully compatible with all the maps of the GD Universe to create custom missions. This new system, combined with standard map tiles create an unique game experience. Below the ground, alien menaces lurk in the shadows. Insidious opponents – and sometimes, precious resources – will appear on the battlefield as Stationary Signals, that will only be revealed when you are close to them… In addition, the doors of the underground Alien Base are protected by an enhanced security system that allows the access only to the owners of the right encrypted keys! To accomplish the final task, our agents will be dressed and armed like gods of war! Thanks to the new GD-Ranks each agent can acquire new skills and tactics, including tactics that can be used without spending actions. More important, they will make the battlefield to quake with their Power Armors, the ultimate weapons created by Mankind. The use of these exoskeletons empowers the Agents with new abilities and allow the Agency to deploy devastating firepower against their Alien opponents. Each Power Armor is represented by a unique figure and by its Power Armor Profile Sheet. Unlike Power Suits, that are used by any character, each Agent uses a unique style of armor. Each armor has completely different weapons and powers, and transforms the Agent in a lethal war machine!
Galaxy Defenders: Extinction Protocol supports 1–5 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Galaxy Defenders: Extinction Protocol is 120 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Galaxy Defenders: Extinction Protocol for ages 12 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Galaxy Defenders: Extinction Protocol has a complexity rating of 3.6 out of 5 from BoardGameGeek players, which makes it a medium-weight game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Galaxy Defenders: Extinction Protocol belongs to these categories: Fighting, Miniatures, and Science Fiction. Its main mechanics are Variable Player Powers, Dice Rolling, and Modular Board. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The credited designers of Galaxy Defenders: Extinction Protocol are: Simone Romano and Nunzio Surace. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists Galaxy Defenders: Extinction Protocol as an expansion for Galaxy Defenders. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Galaxy Defenders to use it. Check that your edition of Galaxy Defenders is compatible, as some expansions were revised between editions.