Purely to satisfy my own curiosity, I decided to compile a list of grand tactical/army-level Ancients (up to AD 500) rulesets that, as of 1 Feb. 2019, are currently in print and available for purchase or download from the publisher's web site or from Lulu, Wargames Vault, etc. Here it is:
ABOUT CAESAR, Dirk Donvil (Caliver Books, 2012)
A FISTFULL OF MINIATURES 2E BASIC, Brett M. Bernstein & Jason Abbott (Precis Intermedia, 2009)
AGE OF HANNIBAL, Greg Wagman (Little Wars TV, 2018)
ANCIENT & MEDIEVAL WARGAMING, Neil Thomas (Sutton, 2007)
ANCIENT BATTLEFIELDS, Lloyd Krassner (Warp Spawn Games, 2004)
ANCIENT BATTLELINES CLASH (Version 3.1), Shaun Travers (web published, 2019)
ANCIENTS D6 (Version 3), John Acar & Andrew Damon (web published, 2008)
ANTIQUITY, Damian Pooley (Aksakal Australia, 2015)
ARCANE WARFARE EXCEL 10, Jerboa Development Team (Jerboa Wargames, 2016)
ARMATI (2nd Edition), Arty Conliffe (Quantum Publishing, 2004)
AVRELIAN, Sam Mustafa (self published, 2015)
AVGVSTVS TO AVRELIAN, Phil Hendry (Too Fat Lardies, 2012)
BASIC IMPETVS (2.0 Edition), Lorenzo Sartori (Dadi & Piombo, 2016)
BEAR YOURSELVES VALIANTLY, John R. “Buck” Surdu, et al. (On Military Matters, 2014)
BELLA CONTRA BARBAROS, Michael Collins (Grand Manoeuver, 2017)
CENTURIA, Massimo Torriani (Torriani Massimo Games, 2015)
CIVITATES BELLANTES, Simon MacDowall & Caoimhin Boru (Legio Wargames, 2014)
CLASH OF EMPIRES, Stuart McCorquodale & Mark Wheatley (Great Escape Games, 2011)
CLASSICAL HACK (2nd Edition), Philip J. Viverito (LMW Works, 2002)
COMITATUS, Simon MacDowall (Legio Wargames, 1990)
COMMANDS & COLORS: ANCIENTS (5th Edition), Richard Borg (GMT Games, 2014)
CONQUERORS AND KINGS, Martin Goddard (Peter Pig, 1998)
CRUSADER, Mark Sims (Crusader Publishing, 2007)
DE BELLIS ANTIQUITATIS (Version 3.0), Phil Barker & Sue Laflin-Barker (Wargames Research Group, 2014)
DE BELLIS MAGISTRORUM MILITUM (Version 2.1), Phil Barker (Wargames Research Group, 2016)
FIELD OF GLORY (3rd Edition), Terry Shaw (Partizan Press, 2017)
GORDIAN KNOT, Richard Watts (Agema Publications, 2004)
HAIL CAESAR, Rick Priestley (Warlord Games, 2011)
HOLY HACK (2nd Edition), Philip J. Viverito (LMW Works, 2007)
HISTORIES OF WAR: EMPIRE & HORDES (3rd Edition), Iain Paterson (web published, 2015)
HOMERIC HACK, Philip J. Viverito (LMW Works, 2004)
HOPLOMACHIA, The Perfect Captain (web published, 2003)
IMPETVS (2nd Edition), Lorenzo Sartori (Dadi & Piombo, 2019)
KINGS OF WAR HISTORICAL, Alessio Cavatore (Mantic Entertainment, 2016)
L’ART DE LA GUERRE (English Edition), Hervé Caille (Onyx Editions, 2014)
LEGIO VI, Simon MacDowall (Legio Wargames, 2002)
LOST BATTLES, Philip Sabin (Hambledon Continuum, 2007)
MIGHTY ARMIES: ANCIENTS, Michael Renegar (Rebel Minis, 2008)
MORTEM ET GLORIAM, Simon Hall (Shall Enterprises, 2016)
PIQUET: ARCHON (2nd Edition), Bob Jones & Eric Burgess (Piquet, 2004)
PMG ANCIENTS, Jeffrey Hunt (Portsmouth Miniatures & Games, 2011)
POLEMOS: SPQR, David Heading (Baccus 6mm, 2011)
PROELIUM, Nigel Emsen (Hordes of Models and Buckets of Dice, 2017)
PULSE OF BATTLE, Brent Oman (Piquet, 2014)
RALLY ROUND THE KING: ARMIES AND CAMPAIGNS 3000BC- 1500AD, David Gray & Ed Teixeira (THW, 2012)
R.A.M. - RULES FOR ANCIENT MINIATURES, Roger Campbell (CSS Chicora Productions, 2005)
RITTER, Chris Engle (Hamster Press, 1996)
ROMAVICTRIX (Eyeball Media & Publications, 2018)
SCUTARII (2nd Edition), William Butler (Hoplite Research, 2014)
STASIS (Eyeball Media & Publications, 2018)
STRATEGOS II, Philip Sabin (The Society of Ancients, 2015)
STORM OF SPEARS, Michael Collins (Grand Manoeuver, 2018)
SWORD & SPEAR (2nd Edition), Mark Lewis (Polkovnik Productions, 2014)
SWORDPOINT, Martin Gibbins (Gripping Beast, 2016)
TACTICA II, Arty Conliffe (On Military Matters, 2018)
THE DIE IS CAST (Version 5.3), Justin Taylor (Veni Vidi Vici, 2013)
TO ARMS!, Frank Wang (Mini Warfare, 2018)
TO THE STRONGEST!, Simon Miller (BigRedBat Ventures, 2014)
TRIUMPH!, David Schlanger (Washington Grand Company, 2018)
WAR & CONQUEST, Rob Broom (Scarab Miniatures, 2012)
WAR GAMES RULES: 3000 BC TO 1485 AD, Phil Barker (Wargames Research Group, 1980)
WARGAMES RULES FOR CLASSICAL WARFARE, Dave Wareham (Lancashire Games, 2000)
WARLORD, Trevor Halsall & Richard Harper (Partizan Press, 2007)
WARLORD: ADVANCE GUARD, Trevor Halsall & Richard Harper (Partizan Press, 2018)
WARRIOR (Black Edition), John Cleaves (Four Horsemen Enterprises, 2006)
If I have missed any grand tactical/army-level Ancients rulesets that are currently in print and available for purchase or download, please let me know.
Cheers,
Scott