Games like Lock's Quest
Games like Lock's Quest include Plants vs. Zombies GOTY Edition, Bloons TD 6, Kingdom Rush - Tower Defense, The Escapists, and Kingdom Rush Frontiers - Tower Defense. We matched them by the tags players give Lock's Quest on Steam (Strategy, RPG, Indie, Tower Defense, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

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

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

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

The Escapists
Shared: Strategy · Pixel Graphics · Indie

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

UFO 50
Shared: Indie · Pixel Graphics · Strategy

Dungeon of the ENDLESS™
Shared: Strategy · Tower Defense · Indie

Stoneshard
Shared: RPG · Strategy · Pixel Graphics

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

Dungeon Munchies
Shared: Indie · Pixel Graphics · RPG

Labyronia RPG
Shared: RPG · Indie · Strategy

Banana
Shared: 2D · Singleplayer · Strategy

Vampire Survivors
Shared: Pixel Graphics · Indie · 2D

The World of Kungfu: Dragon and Eagle
Shared: RPG · Indie · Strategy

Hero's Adventure: Road to Passion
Shared: RPG · Strategy · Indie

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

Tales of the Black Forest
Shared: RPG · Pixel Graphics · Indie

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

Dragon Cliff
Shared: Strategy · RPG · Pixel Graphics

The Last Spell
Shared: Strategy · RPG · Singleplayer

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

Deathtrap
Shared: RPG · Strategy · Tower Defense

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Indie

Bloons TD 5
Shared: Strategy · Tower Defense · Family Friendly