
- BGG rank
- BGG #3,339
- BGG rating
- 7.8
Bolt Action
- 2–6 players
- 120 min
- Complexity 2.7/5
- 2012

Expansion for Command Decision: Test of Battle
2013
Rules assistance for Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules
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.
Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules is an expansion for Command Decision: Test of Battle released in 2013 for 2–8 players, 180 minutes per game, and ages 12 and up. It was designed by Jake Strangeway and its main mechanics are Simulation and Scenario / Mission / Campaign Game.
When Olympus Trembled What's inside: An overview history of Operations Marita, Merkur, and Herkules covering the invasions of Greece, Crete, and the proposed invasion of Malta. 10 historical battles presented as game battles - from the opening drive into Northern Greece to the air assault on Crete, to the fictional drive across Malta to the capital of Valletta. TO&E charts for all Greek Divisions in the Greco-Italian War and Operation Marita including organizational and equipment changes. Corps and army level non-divisional units in the Greek Army: numbers, types and organizations including corps and army artillery, cavalry, engineer and AA units. In 1941 the German Army launched the invasion of Greece and then later the airborne assault on Crete. The two operations were both planned and executed quickly, and with almost disastrous results. The fighting on Crete was vicious, and the casualties among the German forces so great that it caused the cancellation of the last of the above operations -“ the invasion of Malta. Unlike the invasion of Crete, which was rushed and undertaken against numerically superior Allied forces, the invasion of Malta was very well planned, and would have been done with overwhelming numbers. It is indeed fortunate for the Allied war effort that the operation was cancelled.
Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules supports 2–8 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 Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules is 180 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 Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules 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.
Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules 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.
Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules belongs to these categories: Wargame, Miniatures, and World War II. Its main mechanics are Simulation and Scenario / Mission / Campaign 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 credited designers of Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules are: Jake Strangeway. 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 Command Decision: Test of Battle – When Olympus Trembled: Operations Marita, Merkur & Herkules as an expansion for Command Decision: Test of Battle. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Command Decision: Test of Battle to use it. Check that your edition of Command Decision: Test of Battle is compatible, as some expansions were revised between editions.