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"The Lost Valley is a game full of twists and turns that it would be a shame to reveal. To discover them you will have to play it....A relatively simple but not simplistic game that paints a true picture of the challenges to which the French command was constantly subjected." - Vae Victis Magazine No.156 (May/June 2021 issue)

The Lost Valley

The Lost Valley  – The Siege of Dien Bien Phu is a solitaire dice and card-driven board game of tactics and resources management about the battle of Dien Bien Phu, which saw the defeat of the French Expeditionary Corps in Indochina by the Vietnamese People’s Army in 1954. This battle signaled the beginning of the end for the French Colonial Empire and the first steps towards independence for Vietnam.

You will assume the role of Colonel Christian de La Croix de Castries, Commander of Dien Bien Phu’s garrison. You are besieged by five Viet Minh Divisions under General Võ Nguyên Giáp.

The French gamble to establish an air and land base deep in enemy territory in order to draw the Viet Minh into a decisive battle and destroy them with superior French firepower has badly backfired. You are now encircled, outnumbered and outgunned. You will need to carefully manage supplies, skillfully use your elite units as well as your air, armor and artillery assets while keeping the garrison’s morale high in order to hold out as long as possible. All of this in the face of adverse events and relentless Viet Minh Assaults while hoping that your resistance will have a favorable and decisive impact on the 1954 Geneva Conference peace talks.

Good luck Colonel!

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Game Components

1 22" x 34" Full Color Map 

120 Double-Sided 5-8" Counters and Markers

45 Event Cards (Card Deck)

1 16- Page Rule Book 

6 Double-Sided Player Aid Cards 


Note: A ZIP file of DBP game cards in nine per sheet format are included with PnP copies of the game from June 1 forward. The file will be sent upon request for those who purchased the PnP format of the game before June 1. 

To order The Lost Valley: The Siege of Dien Bien Phu use the drop-down menu below. The game comes in three formats. Formats are boxed, folio (plastic bag), and print-and-play (PnP). PnP is sent to you by email. Boxed and folio are printed and shipped by mail to your PayPal address. Select the format and shipping destination then click Add to Cart. Payment will be by PayPal. The price shown includes shipping and handling. If the game has a Vassal module, it will be sent to you by email upon request. For international orders, please allow ten days for arrival of your order.

DBP Card 1
DBP Game Map
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DBP Card 2
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card back
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Photo courtesy of Chris H.

'The game is very nice and very functional...I really liked it.' - Stonewall J.

'I agree with Mr. Jackson on his opinion. The rules are clear and understandable and the difficulty comes from the fact that we cannot do everything and that, in accordance with what happened, even if we fight like a lion the losses are high (and dramatic).' - Harvester

View Gazette du Wargamer link regarding The Lost Valley.

       DBP Living Rules

DBP Rules Summary


"The rules are very clear and intelligently structured to follow the sequence of play...

Rarely in a solitaire game has a player had so many decisions to make...The problematic of the siege, on the French side, is very well described, with rules that work well." - Vae Victis Magazine No.156 (May/June 2021 issue)

"If you are searching for an interesting game covering this subject, The Lost Valley is an excellent choice." - WojennikTV

For a video play through of DBP, click here.

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