Games like UnBurn
Games like UnBurn include Bloons TD 6, Plants vs. Zombies GOTY Edition, Kingdom Rush - Tower Defense, Kingdom Rush Vengeance - Tower Defense, and Kingdom Rush 5: Alliance TD. We matched them by the tags players give UnBurn on Steam (Strategy, Tower Defense, 2D, Singleplayer, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

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

Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · 2D

Kingdom Rush Vengeance - Tower Defense
Shared: Strategy · Tower Defense · 2D

Kingdom Rush 5: Alliance TD
Shared: Strategy · Tower Defense · 2D

Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · Tower Defense · 2D

Kingdom Rush Origins - Tower Defense
Shared: Strategy · Tower Defense · 2D

GemCraft - Frostborn Wrath
Shared: Tower Defense · Strategy · 2D

Minimalist Tower Defense
Shared: Strategy · Tower Defense · 2D

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

Kingdom Rush 6: Genesis TD
Shared: Strategy · Tower Defense · 2D

Stronghold Crusader: Definitive Edition
Shared: Strategy · Real Time Tactics · Tower Defense

HoloParade
Shared: Strategy · Tower Defense · 2D

Dungeon Warfare
Shared: Strategy · Tower Defense · 2D

Thronefall
Shared: Strategy · Tower Defense · Medieval

Artisan TD
Shared: Strategy · Tower Defense · Real Time Tactics

Creeper World 3: Arc Eternal
Shared: Strategy · Tower Defense · Singleplayer

Stronghold: Definitive Edition
Shared: Strategy · Real Time Tactics · Tower Defense

Door Kickers
Shared: Strategy · Singleplayer · Top-Down

Bloons TD 5
Shared: Strategy · Tower Defense · Singleplayer

Mount & Blade II: Bannerlord
Shared: Strategy · Singleplayer · Medieval

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Singleplayer

Infested Planet
Shared: Strategy · Tower Defense · Singleplayer

Holo vs Robo
Shared: Strategy · Tower Defense · Singleplayer