Games like Towers, Turrets, Turtles
Games like Towers, Turrets, Turtles include Bloons TD 6, Thronefall, Plants vs. Zombies GOTY Edition, Kingdom Rush - Tower Defense, and Bloons TD 5. We matched them by the tags players give Towers, Turrets, Turtles on Steam (Action, Casual, Strategy, Tower Defense, and 2.5D): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Tower Defense · Casual

Thronefall
Shared: Strategy · Tower Defense · Action

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

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

Bloons TD 5
Shared: Strategy · Tower Defense · Action

Rogue Tower
Shared: Strategy · Tower Defense · Casual

Monument Valley 2
Shared: Casual · Strategy · Action

Bee Island
Shared: Strategy · Tower Defense · Action

Defend Your Life: TD
Shared: Casual · Tower Defense · Strategy

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

Creeper World 4
Shared: Tower Defense · Strategy · RTS

Warpips
Shared: Strategy · Tower Defense · Auto Battler

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

Orcs Must Die!
Shared: Action · Tower Defense · Strategy

Rock 'N' Roll Defense
Shared: Casual · Strategy · Action

Orcs Must Die! 2
Shared: Action · Tower Defense · Strategy

SMITE 2
Shared: Action · Strategy · Casual

Mini Motorways
Shared: Strategy · Casual · Puzzle

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

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

Among Us 3D
Shared: Casual · Strategy · 3D

ShellShock Live
Shared: Strategy · Action · Casual

Kingdom Rush Vengeance - Tower Defense
Shared: Strategy · Tower Defense · Action

The WereCleaner
Shared: Casual · Strategy · Cartoony