Games like Kill The Boss
Games like Kill The Boss include Cookie Clicker, Shelldiver, Nodebuster, Tower Wizard, and Keep on Mining!. We matched them by the tags players give Kill The Boss on Steam (Casual, Arcade, Idler, Incremental, and 2D): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Casual · Incremental

Shelldiver
Shared: Casual · Incremental · Arcade

Nodebuster
Shared: Casual · Incremental · Idler

Tower Wizard
Shared: Idler · Incremental · 2D

Keep on Mining!
Shared: Casual · Idler · Incremental

Fortune Mill
Shared: Idler · Incremental · Casual

To The Core
Shared: Casual · Incremental · Arcade

Melvor Idle
Shared: Casual · Idler · 2D

Idle Champions of the Forgotten Realms
Shared: Idler · Incremental · Fantasy

Dragon Cliff
Shared: Idler · Casual · Incremental

Timberman
Shared: Casual · Pixel Graphics · Arcade

Click and Conquer
Shared: Casual · Incremental · Idler

Space Rock Breaker
Shared: Casual · Arcade · Incremental

Incredicer
Shared: Casual · Idler · Incremental

Click the Button
Shared: Casual · Idler · Incremental

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Horripilant
Shared: Idler · Incremental · Casual

A Game About Feeding A Black Hole
Shared: Casual · Incremental · Idler

This Ain’t Even Poker, Ya Joker
Shared: Idler · Incremental · Casual

Digseum
Shared: Casual · Incremental · Idler

Cauldron
Shared: Casual · Incremental · Pixel Graphics

Scritchy Scratchy
Shared: Incremental · Idler · Arcade

Deep Space Cache
Shared: Casual · Incremental · Idler

Timber Rush
Shared: Casual · Idler · Incremental