
- BGG rank
- BGG #582
- BGG rating
- 9.0
Aeon Trespass: Odyssey
- 1–4 players
- 90 min
- Complexity 4.8/5
- 2022

Rules assistance for Galaxy Defenders Agent: Tritium
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Galaxy Defenders Agent: Tritium is an expansion for Galaxy Defenders released in 2015 for 1–5 players, 120 minutes per game, and ages 12 and up. Its main mechanics are Dice Rolling, Grid Movement, and Cooperative Game.
Tritium is a Support agent – Support agents are specialists in using devices. The presence of these agents in a team may be the key to winning the battle. Instead of using two weapons, Tritium has an almost endless supply of devices that appear randomly in her secondary weapon slot, so her focus in the game is to support the team with a plethora of high-tech gadgets. She was available as part of the second Galaxy Defenders kickstarter.
Galaxy Defenders Agent: Tritium 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 Agent: Tritium 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 Agent: Tritium 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 Agent: Tritium belongs to these categories: Fighting, Science Fiction, and Expansion for Base-game. Its main mechanics are Dice Rolling, Grid Movement, and Cooperative Game. 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 catalogue lists Galaxy Defenders Agent: Tritium 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.