• 1815 The Waterloo Campaign (1975, Game Designers Workshop) by Frank Chadwick.
  • Napoleon's Last Battles (1976, SPI - also known as NLB) by Kevin Zucker.

Both games had similar unit, time, and hex scales as well as map coverage area. Game mechanics were mostly identical - order of battle, sequence of play, rigid zones of control, command structure. Key differences appear in three areas: artillery bombardment, combined arms, and national tactical doctrines.

Bombardment

  • 1815: Artillery may bombard from 1 or 2 hexes away, using their much-stronger defense values as the bombardment strength.
  • NLB: Bombard only from 2 hexes away.
  • In both games, bombarding an enemy unit adjacent to friendly infantry and cavalry relieves those units of their obligation to attack the bombarded enemy units.

Combined Arms (CA)

  • 1815: CA effects come from the interaction of artillery bombardment and cavalry shock factors.
  • NLB: CA is explicitly stated as having at least one unit of each type in an attack.

Tactical Doctrine

  • 1815: Manifested in the command structures, and stacking abilities unique to each army. Also in the ability of units to exit enemy ZOC's under certain condition. 
  • NLB: Limited to the command structure only.

Even though 1815 came first, NLB has outlived it by decades. Kevin Zucker's continued support and improving of the NLB system is still published today as the Library of Napoleonic Battles. But 1815 provides a valid alternative perspective on Napoleonic combat operations.

Vassal Module

Download 1815 vassal module.

Map: Suprisingly, there is no module on the vassalengine.org website for 1815. Perhaps because no full-sized scans of the original maps have been readily available. The module available here is a fork from the excellent Cyberboard module by Jim Priestaf and available on Limey Yank Games. The map image is divided into two sections, North and South - like the paper maps, comprising the default board layout and hex identification system. 

Units are vassal Game-Piece images. Two-step units have a layer to show reduced combat values. Combat factors on one-step units (and reduced two-steppers) are displayed on a white background (similar to NLB). Color-coding of units has been added to better show command structure within each army.

Charts, tables, and order of appearance cards are not included in the module. Use the printed versions that came with the game. If you need assistance with these, geekmail user rdmorss on BGG.