
- BGG rank
- BGG #8,911
- BGG rating
- 6.7
Intruder
- 1–3 players
- 30–60 min
- Complexity 1.9/5
- 1980

2013
Rules assistance for Hidden Intruder
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
For 1 player

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Answers come from the official rulebook, with the page to check.
Hidden Intruder is a board game released in 2013 for 1–3 players and 30 minutes per game. It was designed by B. Dennis Sustare and its main mechanics are Area Movement.
Hidden Intruder is a reprint/re-skin of Intruder: a one player board game that re-creates the theme and feel of the movie "Alien". The game can also be played with 1-3 players. The goal is to survive an encounter with an alien "intruder" on a space ship. According to the Print & Play website: "The Intruder is an alien being of unknown power. During the course of the game the Intruder will move through the space station as both the hunter and the hunted. One or more players must cope with a monster that moves rapidly and changes continuously as it undergoes metamorphosis into a more powerful being, and possibly divides into two or more clones. Hidden Intruder is a solitaire game – BUT it has 3 “scenarios” or different ways to play that allow for 2-3 players to play. -Intelligent Intruder (One player plays the Intruder) -Return to Prometheus (One player plays the Intruder, or 3 players each take a team of 3 troops) -Science Officers (2 players, each control a separate team, with slightly different win conditions, allowing for one player or both players or neither player to win) The game includes 54 counters representing the crew and their weapons, lab animals (which confuse the search) and the Intruder. The playing map shows in detail the interior of deep space station ‘Prometheus’. The map also contains special charts to record the development of the Intruder. Hidden Intruder is an exciting game of terror and suspense for one to two players. Hidden Intruder is a reskin of the old Classic game, Intruder. Dennis Sustare, designer of Intruder, has agreed to let me reprint his game with this new art."
Hidden Intruder supports 1–3 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 Hidden Intruder is 30 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.
Hidden Intruder has a complexity rating of 2.0 out of 5 from BoardGameGeek players, which makes it a medium-light 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.
Hidden Intruder belongs to these categories: Wargame, Horror, and Science Fiction. Its main mechanics are Area Movement. 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 Hidden Intruder are: B. Dennis Sustare. 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 Hidden Intruder as a base game. It can be played on its own with the components in the box and does not require any other title. Expansions, if any exist, add new content or rules on top of it and are listed separately in the catalogue with a link back to this base game.