A PDF of the rules is available through the Help menu. Please note that it may take a little while for your PDF viewer to launch
At the start of a new game, you will be presented with a window to select which optional rules should be in effect. You will not be able to change these settings later in the game.
When the game is progressed to the first turn Allied move points phase, then game pieces that are not in used are removed and the optional rules are locked.
I you play by email, then one of you should select the optional rules, save the game before moving to the Allied move points phase. , and send it off to the other side for validation. Only then should you progress to the next phase.
Press the
Wehrmacht button (
Ctrl-Shift-G
) to load the
historical (more or less) German setup.
Press the
SHAEF button (
Ctrl-Shift-A
) to load the
historical (more or less) Allied setup.
These buttons are only available in the first turns Weather phase.
Use the Turn tracker interface in the menubar. A number of automatic actions are implemented in this module, which heavily depend on the use of that interface.
You can go to the next phase by pressing the + button, or
by pressing Alt-T
. This is the only possible
way of moving the turn marker.
Phases that are not in use - because some optional rule was disabled, like the replacements phases - are automatically skipped.
If the weather optional rule is in effect, then the weather will automatically be resolved at the start of the Weather.
Next to each supply point on the map, are markers to keep track of which faction controls that supply point. This must be managed by the factions - the module does not do this automatically.
A control marker can be "flipped" via the right-click
context menu, or by selecting the marker and pressing
Ctrl-F
If the Alternate move points optional rule is in effect, then it is crucial that these are managed correctly, as they determine how many move points a faction receives
Move points are automatically allocated to the factions in the relevant phases, including if the Alternate move points optional rule is in effect.
Move points are not automatically spent by movement and such. The factions must take care to do so themselves. There are two buttons in the menubar of the OOBs to help with this.
If the Alternate move points optional rule is in effect, it is imperative that the factions record control of supply points by flipping the faction markers on the map.
Reinforcements units are not moved on to the map automatically.
Only applicable if the optional replacements rule is in effect.
Replacements must be built the turn before they can be taken as reinforcements. Eliminated units are therefore placed face-down on the OOBs, and move points must be spend to bring them face up. As with other movem point expendatures, this is not enforced by the module.
Battles must be declared in a factions movement phase, including Allied strategic bombing missions.
The module can automatically calculate odds and resolve combats
via the use of battle markers. To place a battle marker,
select the attacking and defending units and press the
battle marker button () or
Ctrl-X
. This will place markers on the invovled
units that identifiy the battle uniquely.
This only works if the pieces are on the map. That is, if the units are in an army holding box it will not work.
If the user preference Calculate Odds on battle
declaration is enabled, then the module will also calculate
the odds (inluding bonuses and penalties for terrain), and place
an odds marker (e.g., )
on one of the involved units.
The rules says that only one hex may be attacked at a time. The module assumes this, but does not enforce it, so be careful to not select defending units in more than one hex.
In the factions Combat phase, you can right click the odds
marker and select Resolve (or Ctrl-Y
) to
resolve the combat. The module will do the appropriate
calculations and roll the dices needed, and a replace the odds
marker with a result marker (e.g. ).
The module will not apply the result to the invovled units. This must be done, according to the rules by the factions.
To clear a battle declaration, select one of the involved units
or battle markers, and select Clear (or press
Ctrl-C
) from the context menu. All battles can be
cleared by the button in the
menubar.
Allied strategic bombing missions, if that optional rules is enabled, can be declared in the same way as regular combat. Note that the rules says that only one German unit per Allied bomber may be attacked.
However, the mission should be resolved in the Allied strategic air missions phase, rather than in the Combat phase. Resolution follows the same principle as above.
If the result of a strategic bombing mission contains NT
(no terrain bonuses), then an NT marker () is placed on the
defending unit, and the terrain modifiers are automatically
ignored. Note that you must recalculate the odds by
clearing the previously declared ground combat and redeclaring it.
If the optional rule Alternate move points is enabled, then the German faction is automatically awarded 1 MP per strategic bomber mission resolved by the Allied faction.
Eliminated units will be sent back to the OOB. Eliminated units are automatically flipped to their reduced side. This is to mark them as eliminated units and can therefore not be taken as reinforcements until the faction has spent the necessary move points (optional rule).
Use the right context menu item Isolated (or
Ctrl-I
) to mark one or more units as isolated.
The menu button Show unit status (Ctrl-S
)
shows all units divided by supply status (flipped or with isolated
marker). Use this to quickly find units that may need
checking. Note that the module cannot by itself figure out the
supply status of a unit. This must be checked by a player.
This VASSAL module was created from LATEX sources of a Print'n'Play version of the D-Day game. That (a PDF) can be found at
https://gitlab.com/wargames_tex/sdday_tex
where this module, and the sources, can also be found. The PDF can also be found as the rules of this game, available in the Help menu.
The original game was release by the Avalon Hill Game Company.
This work is 🄯 2022 Christian Holm Christensen, and licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit
http://creativecommons.org/licenses/by-sa/4.0
or send a letter to