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

Bloons TD 6
Shared: Tower Defense · Strategy · Cartoony

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · 2D

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

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

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

Draw & Guess
Shared: Funny · PvP · 2D

Element TD 2 - Tower Defense
Shared: Tower Defense · Real Time Tactics · Strategy

Minimalist Tower Defense
Shared: Tower Defense · Strategy · Real Time Tactics

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

MECCHA CHAMELEON
Shared: Hand-drawn · Funny · Casual

Defend Your Life: TD
Shared: Tower Defense · Strategy · 2D

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

Mindustry
Shared: Tower Defense · Strategy · 2D

Bloons TD 5
Shared: Tower Defense · Strategy · 2D

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

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

Rock of Ages
Shared: Strategy · Tower Defense · Indie

Company of Heroes 3
Shared: Strategy · Real Time Tactics · PvE

HoloParade
Shared: Tower Defense · Strategy · Real Time Tactics

Holo vs Robo
Shared: Tower Defense · Strategy · Hand-drawn

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

Dungeon Warfare
Shared: Tower Defense · Strategy · 2D

Plants vs. Zombies: Battle for Neighborville™
Shared: Tower Defense · PvE · Funny

Plague Inc: Evolved
Shared: Strategy · Indie · PvP