Games like Line Tower Wars
Games like Line Tower Wars include Dota 2, Yu-Gi-Oh! Master Duel, Bloons TD 6, GWENT: The Witcher Card Game, and Legion TD 2 - Multiplayer Tower Defense. We matched them by the tags players give Line Tower Wars on Steam (Strategy, Tower Defense, Tactical RPG, Top-Down, and Fantasy): closest matches first, and among equally close ones the better-known games.

Dota 2
Shared: Strategy · Free to Play · Multiplayer

Yu-Gi-Oh! Master Duel
Shared: Strategy · Free to Play · PvP

Bloons TD 6
Shared: Strategy · Tower Defense · Multiplayer

GWENT: The Witcher Card Game
Shared: Strategy · Free to Play · Fantasy

Legion TD 2 - Multiplayer Tower Defense
Shared: Tower Defense · Strategy · Multiplayer

Dota Underlords
Shared: Strategy · Free to Play · Multiplayer

Magic: The Gathering Arena
Shared: Strategy · Free to Play · PvP

Orcs Must Die! 3
Shared: Tower Defense · Strategy · PvE

Omega Strikers
Shared: Strategy · PvP · Multiplayer

Element TD 2 - Tower Defense
Shared: Tower Defense · Strategy · Fantasy

Where Winds Meet
Shared: Free to Play · Multiplayer · Singleplayer

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

Dungeon Defenders
Shared: Tower Defense · Strategy · Multiplayer

Paladins®
Shared: Free to Play · Multiplayer · PvP

Company of Heroes 3
Shared: Strategy · Singleplayer · Multiplayer

GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Top-Down

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

World of Warships
Shared: Free to Play · Strategy · Multiplayer

Age of Empires III: Definitive Edition
Shared: Strategy · Multiplayer · Free to Play

Warstone TD
Shared: Strategy · Tower Defense · Fantasy

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

Age of Mythology: Retold
Shared: Strategy · Fantasy · Top-Down

Orcs Must Die! Deathtrap
Shared: Tower Defense · Strategy · Fantasy

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