Games like HexArmy
Games like HexArmy include Company of Heroes 3, XCOM 2, The Last Spell, King Arthur: Knight's Tale, and Jagged Alliance 3. We matched them by the tags players give HexArmy on Steam (Tactical RPG, Turn-Based Tactics, Massively Multiplayer, RPG, and Wargame): closest matches first, and among equally close ones the better-known games.

Company of Heroes 3
Shared: Strategy · Wargame · Singleplayer

XCOM 2
Shared: Strategy · Turn-Based Tactics · RPG

The Last Spell
Shared: RPG · Turn-Based Tactics · Strategy

King Arthur: Knight's Tale
Shared: Tactical RPG · Turn-Based Tactics · RPG

Jagged Alliance 3
Shared: Turn-Based Tactics · Strategy · Tactical RPG

XCOM®: Chimera Squad
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

Heroes of Might and Magic: Olden Era
Shared: RPG · Strategy · Turn-Based Tactics

Inkbound
Shared: Tactical RPG · Turn-Based Tactics · PvE

Axis and Allies 1942 Online
Shared: Wargame · Strategy · Turn-Based Tactics

The Elder Scrolls Online - Standard Edition
Shared: RPG · Massively Multiplayer · Multiplayer

Temtem
Shared: RPG · Turn-Based Tactics · PvE

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

Banner of the Maid
Shared: Turn-Based Tactics · RPG · Strategy

Fell Seal: Arbiter's Mark
Shared: Turn-Based Tactics · RPG · Tactical RPG

Battle Brothers
Shared: Turn-Based Tactics · RPG · Strategy

Blood Bowl 2: Legendary Edition (Classic)
Shared: Strategy · RPG · Board Game

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Tactical RPG · RPG

Sunderfolk
Shared: Tactical RPG · Turn-Based Tactics · PvE

TROUBLESHOOTER: Abandoned Children
Shared: Tactical RPG · Turn-Based Tactics · RPG

Warhammer 40,000: Rogue Trader
Shared: RPG · Tactical RPG · Strategy

Wartales
Shared: RPG · Tactical RPG · Turn-Based Strategy

Total War: WARHAMMER
Shared: RPG · Strategy · Tactical RPG

Root
Shared: Strategy · Wargame · Board Game

Mount & Blade II: Bannerlord
Shared: RPG · Strategy · Multiplayer