Slitherine

Similarly to what I did previously with 'Prototype' Qadesh, 'Prototype' Megiddo 2.0 is a retro-engineering of Megiddo 1.0 to bring that variant version closer to more traditional descriptions of the battle and with other game adaptations of this much-scenarioed battle. The description in the FoG scenario intro explains its main points of difference with version 1.0.

https://db.tt/32TJUeZf

Some 'slight changes' for version 2.1, downloadable from the above link space.