Games like Silk Road Defenders
Games like Silk Road Defenders include Idle Champions of the Forgotten Realms, Firestone – Idle Clicker Online RPG, One Finger Death Punch, Your Only Move Is HUSTLE, and Plebby Quest: The Crusades. We matched them by the tags players give Silk Road Defenders on Steam (Action, Casual, Adventure, Strategy, and 2D Fighter): closest matches first, and among equally close ones the better-known games.

Idle Champions of the Forgotten Realms
Shared: Strategy · Adventure · Idler

Firestone – Idle Clicker Online RPG
Shared: Auto Battler · Idler · Strategy

One Finger Death Punch
Shared: Action · 2D Fighter · Beat 'em up

Your Only Move Is HUSTLE
Shared: Action · 2D Fighter · Strategy

Plebby Quest: The Crusades
Shared: Casual · Strategy · Action

SMITE 2
Shared: Action · Strategy · Adventure

Rock 'N' Roll Defense
Shared: Casual · Action · Strategy

RADical ROACH Remastered
Shared: Action · Casual · Adventure

Book of Yog Idle RPG
Shared: Auto Battler · Casual · Adventure

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

Caster
Shared: Action · Adventure · Casual

Cyberhunt
Shared: Action · Casual · Adventure

One Finger Death Punch 2
Shared: Action · Casual · Beat 'em up

TouHou Makuka Sai ~ Fantastic Danmaku Festival
Shared: Action · Adventure · Casual

Gang Beasts
Shared: Action · Casual · Party Game

Castle Crashers®
Shared: Beat 'em up · Adventure · Action

ShellShock Live
Shared: Action · Strategy · Casual

Achievement Clicker
Shared: Casual · Action · Strategy

Notes of Soul
Shared: Action · Adventure · Casual

Pikuniku
Shared: Casual · Adventure · Action

BEEP
Shared: Adventure · Action · Casual

Dragon Cliff
Shared: Strategy · Casual · Adventure

UFO 50
Shared: Action · Strategy · Adventure

Path of Idle: Old Gods Rising
Shared: Adventure · Strategy · Casual