Games like Gardener's Luck
Games like Gardener's Luck include Plants vs. Zombies GOTY Edition, Kingdom Rush - Tower Defense, Bloons TD 6, Kingdom Rush Frontiers - Tower Defense, and Rogue Tower. We matched them by the tags players give Gardener's Luck on Steam (Tower Defense, Casual, Strategy, Roguelite, and Cartoon): closest matches first, and among equally close ones the better-known games.

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

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

Bloons TD 6
Shared: Tower Defense · Strategy · Casual

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

Rogue Tower
Shared: Tower Defense · Strategy · Casual

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Fantasy

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

They Are Billions
Shared: Strategy · Tower Defense · Survival

Factorio
Shared: Strategy · Resource Management · Base Building

The King is Watching
Shared: Tower Defense · Strategy · Fantasy

Oxygen Not Included
Shared: Survival · Resource Management · Base Building

Emberward
Shared: Tower Defense · Strategy · Roguelite

Kingdom: New Lands
Shared: Tower Defense · Survival · Roguelite

This War of Mine
Shared: Strategy · Survival · Singleplayer

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

Frostpunk
Shared: Strategy · Survival · Resource Management

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

Rise to Ruins
Shared: Tower Defense · Strategy · Survival

Tower Dominion
Shared: Tower Defense · Strategy · Roguelite

Mindustry
Shared: Tower Defense · Strategy · Resource Management

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

RimWorld
Shared: Strategy · Survival · Base Building

Bloons TD 5
Shared: Tower Defense · Strategy · Casual

Dungeon Defenders
Shared: Tower Defense · Strategy · Survival