Gettysburg: Fields of Valor

Gettysburg: Fields of Valor (c) is a turn-based two-player historical war game that is played on a hex grid using a multiple phase movement and combat system, with many features that make it fast to play and easy to enjoy:
- American Civil War battle of Gettysburg simulation
- Turn-based, streamlined multi-phase movement and combat
- 50 x 35 topographical hex map of the entire battlefield
- All brigades, artillery batteries, and commanders modeled
- Brigades occupy multiple hexes according to size
- Multi-counter brigades move and fight as cohesive units
- Brigade counter values change with combat results
- Reinforcements and replacements automatically scheduled
- Enemy range of influence automatically calculated
- Unit movement range display and movement undo capability
- Available artillery and targets automatically calculated
- Automatic retreat and advance after successful assault
- Save and reload games from your game library
- Automatic game snapshots for replay and alternate scenarios
- Progress, casualty and objectives report continually updated
- Single-computer (2-player) and play-by-email modes
- Available for Windows and MacOS
- Full details in the Game Manual

Source: Steam Store Description