Games like Save the Llama
Games like Save the Llama include Bloons TD 6, Plants vs. Zombies GOTY Edition, Creeper World 4, Defense Grid: The Awakening, and Rogue Tower. We matched them by the tags players give Save the Llama on Steam (Tower Defense, Strategy, 3D, Top-Down, and Tutorial): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Tower Defense · Strategy · 3D

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

Creeper World 4
Shared: Tower Defense · Strategy · 3D

Defense Grid: The Awakening
Shared: Tower Defense · Strategy · Sci-fi

Rogue Tower
Shared: Tower Defense · Strategy · 3D

Thronefall
Shared: Tower Defense · Strategy · 3D

Infested Planet
Shared: Tower Defense · Strategy · Top-Down

Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · Sci-fi

X-Morph: Defense
Shared: Tower Defense · Strategy · Sci-fi

Emberward
Shared: Tower Defense · Strategy · 3D

Artisan TD
Shared: Tower Defense · Strategy · Top-Down

Tiny Tactics
Shared: Tower Defense · Strategy · 3D

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

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

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

Sanctum 2
Shared: Tower Defense · Strategy · Sci-fi

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

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

shapez 2 - Factory
Shared: Strategy · Building · 3D

IDUN - Frontline Survival
Shared: 3D · Tower Defense · Strategy

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Building

Anomaly Warzone Earth
Shared: Strategy · Tower Defense · Top-Down

Outpost: Infinity Siege
Shared: Tower Defense · 3D · Strategy

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Top-Down