Games like Train your slayer
Games like Train your slayer include Cookie Clicker, Vampire Survivors, Timberman, Terraria, and Melvor Idle. We matched them by the tags players give Train your slayer on Steam (Casual, Survival, Auto Battler, Linear, and 2D): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Casual · Idler · Indie

Vampire Survivors
Shared: 2D · Casual · Pixel Graphics

Timberman
Shared: Casual · 2D · Indie

Terraria
Shared: Survival · 2D · Pixel Graphics

Melvor Idle
Shared: Casual · Idler · 2D

Click the Button
Shared: Casual · Idler · Indie

Desktop Defender
Shared: Auto Battler · Casual · Idler

Keep on Mining!
Shared: Casual · Idler · Incremental

Forager
Shared: Survival · Pixel Graphics · 2D

Zero Stress King: Idle Defense
Shared: Auto Battler · Casual · Idler

Horripilant
Shared: Casual · Idler · Pixel Graphics

To The Core
Shared: Casual · 2D · Incremental

Loot Loop
Shared: Casual · Idler · Auto Battler

Nodebuster
Shared: Casual · Idler · 2D

Timber Rush
Shared: Casual · Idler · Indie

Dragon Cliff
Shared: Casual · Idler · Pixel Graphics

Shelldiver
Shared: Casual · Idler · 2D

A Game About Feeding A Black Hole
Shared: Casual · Idler · 2D

Deep Space Cache
Shared: Casual · Indie · Idler

Cauldron
Shared: Casual · Auto Battler · 2D

Wild Growth
Shared: Casual · Linear · 2D

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

Rain World
Shared: Survival · 2D · Indie

Fortune Mill
Shared: Idler · Casual · Pixel Graphics