Games like Tactical Annihilation
Games like Tactical Annihilation include Warhammer 40,000: Gladius - Relics of War, Into the Breach, BattleTech, XCOM: Enemy Unknown, and XCOM®: Chimera Squad. We matched them by the tags players give Tactical Annihilation on Steam (Turn-Based Tactics, Wargame, Hex Grid, Base Building, and Strategy): closest matches first, and among equally close ones the better-known games.

Warhammer 40,000: Gladius - Relics of War
Shared: Strategy · Hex Grid · Turn-Based Tactics

Into the Breach
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

BattleTech
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Turn-Based Tactics

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

ROMANCE OF THE THREE KINGDOMS XIV
Shared: Turn-Based Tactics · Wargame · Strategy

Axis and Allies 1942 Online
Shared: Wargame · Strategy · Board Game

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

Warhammer 40,000: Mechanicus
Shared: Turn-Based Tactics · Strategy · Sci-fi

Xenonauts
Shared: Turn-Based Tactics · Base Building · Turn-Based Strategy

Warhammer 40,000: Battlesector
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

XCOM 2
Shared: Strategy · Turn-Based Tactics · Sci-fi

Panzer Corps 2
Shared: Strategy · Hex Grid · Wargame

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

Foxhole
Shared: Wargame · Base Building · Strategy

MENACE
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

Second Front
Shared: Turn-Based Tactics · Hex Grid · Wargame

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

Romance of the Three Kingdoms XIII
Shared: Turn-Based Tactics · Wargame · Strategy

Romance of the Three Kingdoms XI with Power Up Kit
Shared: Turn-Based Tactics · Wargame · Turn-Based Strategy

The Troop
Shared: Turn-Based Tactics · Wargame · Hex Grid

Warriors of the Nile
Shared: Turn-Based Tactics · Strategy · Wargame

Codex of Victory
Shared: Strategy · Base Building · Hex Grid

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