Games like Treasure Protector
Games like Treasure Protector include Kingdom Rush - Tower Defense, Kingdom Rush 5: Alliance TD, XCOM 2, Dragon Age™: The Veilguard, and Artisan TD. We matched them by the tags players give Treasure Protector on Steam (Tower Defense, Turn-Based Tactics, Dragons, Strategy, and Fantasy): closest matches first, and among equally close ones the better-known games.

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Fantasy

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · Dragons

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

Dragon Age™: The Veilguard
Shared: Fantasy · Strategy · Turn-Based Tactics

Artisan TD
Shared: Tower Defense · Strategy · Tactical

Songs of Conquest
Shared: Turn-Based Tactics · Tactical · Fantasy

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · Tactical

GemCraft - Chasing Shadows
Shared: Tower Defense · Strategy · Fantasy

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

Age of Darkness: Final Stand
Shared: Tower Defense · Strategy · Fantasy

Bloons TD 6
Shared: Tower Defense · Strategy

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

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Tactical

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

Kingdom Rush Frontiers - Tower Defense
Shared: Tower Defense · Strategy · Fantasy

Mordheim: City of the Damned
Shared: Tactical · Strategy · Turn-Based Tactics

Total War: WARHAMMER III
Shared: Strategy · Fantasy · Tactical

Dungeon Defenders
Shared: Tower Defense · Strategy · Tactical

Total War: WARHAMMER II
Shared: Strategy · Fantasy · Tactical

BattleTech
Shared: Turn-Based Tactics · Strategy · Tactical

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

The King is Watching
Shared: Tower Defense · Fantasy · Strategy

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

MENACE
Shared: Strategy · Turn-Based Tactics · Tactical