
- BGG rank
- BGG #15
- BGG rating
- 8.6
Slay the Spire: The Board Game
- 1–4 players
- 30–150 min
- Complexity 2.9/5
- 2024

Rules assistance for One-Hit Heroes: Doggo Companion Pack
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
One-Hit Heroes: Doggo Companion Pack is an expansion for One-Hit Heroes released in 2025 for 1–4 players, 20–60 minutes per game, and ages 10 and up. Its main mechanics are Variable Player Powers, Hand Management, and Cooperative Game.
DO66-0 is your mechanical canine companion, ready to help you by granting powerful upgrades. DO66-0 comes equipped with 3 playable game modes: Solo Mode Play as one Hero with DO66-0 at your side! Beginner Mode Play as DO66-0 and join other Heros. Boost Mode Play without DO66-0, but gain its upgrades to help with tough boss fights. —description from the publisher
One-Hit Heroes: Doggo Companion Pack 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 One-Hit Heroes: Doggo Companion Pack is 20–60 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 One-Hit Heroes: Doggo Companion Pack for ages 10 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.
One-Hit Heroes: Doggo Companion Pack belongs to these categories: Card Game, Fighting, and Adventure. Its main mechanics are Variable Player Powers, Hand Management, 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 One-Hit Heroes: Doggo Companion Pack as an expansion for One-Hit Heroes. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need One-Hit Heroes to use it. Check that your edition of One-Hit Heroes is compatible, as some expansions were revised between editions.