
Cave Pilot 55: Acid Test Expansion
- 1–4 players
- 30–100 min
- 2015

2017
Rules assistance for Cave Pilot 55
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.
Cave Pilot 55 is a board game released in 2017 for 1–4 players, 30–100 minutes per game, and ages 14 and up. It was designed by Martijn Weterings and its main mechanics are Race, Dice Rolling, and Modular Board.
Cave Pilot 55 is an 'Arcade' card-board game where 1-4 players race their sophisticated technological bat-planes through a gauntlet cave. Players jointly contribute to the construction of the cave. The goal of the game is to finish alive with the most experience points gained during the race. Each turn, player's put a small part of the cave on the table, representing either the ceiling or the floor of the cave. By doing so, a long small cave is created on which different dangerous objects or animals (vampiric bat, giant centipedes, laser beams, etc) are shown. During movement the bat-planes fly either along the cave ceiling or along the cave floor until they arrive at a cave and have to encounter its horrors. The dice-fight that follows during an encounter can be won (experience points are gained) or lost, depending on the strength and equipment of the bat-plane. Players can strengthen their bat-planes by upgrading various parts of their plane (shields, short-range attack, plate armor, power, maneuverability and navigation & control), however only at specific locations in the cave. Players can not only invest their money in upgrades, they can also decide to buy long-range missiles or booster fuel. The long-range missiles can be used to shoot rivals, caves and obstructions. Booster fuel is used to outmaneuver other players by playing an extra turn or to move diagonally. Some cave locations also offer the possibility to explore the local environment, and with a bit of luck player's might find special upgrades there. Each game, the layout, the length and the difficulty of the cave is different. It is a tactical game, thrilling to the last turn, based on a few simple rules, in a steampunk sci-fi technological world, where players have to continually cope with limited resources.
Cave Pilot 55 supports 1–4 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 Cave Pilot 55 is 30–100 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 Cave Pilot 55 for ages 14 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.
Cave Pilot 55 has a complexity rating of 2.9 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.
Cave Pilot 55 belongs to these categories: Card Game, Fantasy, and Print & Play. Its main mechanics are Race, 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 Cave Pilot 55 are: Martijn Weterings. 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 Cave Pilot 55 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.