- The rules and scenarios are unchanged from the first edition, but where the original game was designed primarily for use with figures, Justin Swanton's new board and counter art is designed to be played as printed.
- The rules and scenarios are based wherever possible on primary sources and are designed for simulation as well as play value. A handicap system gives both sides a chance at game victory.
- In addition to the full historical scenarios, Legion includes a fast-play introductory game and rules for tournament-style play.
- Although more detailed than both Phil Sabin's earlier game Phalanx and his more recent Strategos/Lost Battles system, Legion can still be played to completion in two or three hours and is suitable for both across the table and solitaire play.
- The game emphasizes troop quality over troop quantity, the importance of leadership, includes rules for weather and terrain, and scales to accurately represent different battles.
It is available now on the Society website for £15 (£12 for Society members) plus shipping.
Full contents (as seen below) include: rules booklet, game board, counter sheets, terrain sheets, quick reference sheet. Note that some assembly is required.