Games like Kill A Million Rats
Games like Kill A Million Rats include Cult of the Lamb, BALL x PIT, Cluckmech Oasis, Dead Cells, and Mewgenics. We matched them by the tags players give Kill A Million Rats on Steam (Strategy, Roguelite, Base Building, Roguelike, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Cult of the Lamb
Shared: Base Building · Roguelite · Cute

BALL x PIT
Shared: Roguelite · Action · Roguelike

Cluckmech Oasis
Shared: Strategy · Roguelike · Roguelite

Dead Cells
Shared: Roguelike · Roguelite · Adventure

Mewgenics
Shared: Roguelite · Cats · Strategy

Skul: The Hero Slayer
Shared: Roguelike · Roguelite · Action

Escape From Duckov
Shared: Action · Adventure · Top-Down Shooter

Wall World
Shared: Roguelite · Strategy · Roguelike

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

The King is Watching
Shared: Base Building · Roguelike · Strategy

Balatro
Shared: Roguelike · Strategy · Roguelite

Sephiria
Shared: Roguelite · Roguelike · Action

Kingdom Rush 5: Alliance TD
Shared: Strategy · 2D · Cartoony

Hades
Shared: Roguelite · Roguelike · Action

Vampire Survivors
Shared: Roguelite · Roguelike · 2D

Home Behind 2
Shared: Strategy · Roguelike · Roguelite

Drill Core
Shared: Strategy · Roguelite · Roguelike

Gunfire Reborn
Shared: Roguelite · Roguelike · Action

Rogue Tower
Shared: Strategy · Roguelike · Base Building

Slay the Spire 2
Shared: Roguelike · Strategy · Roguelite

We Who Are About To Die
Shared: Roguelite · Strategy · Action

Tower Dominion
Shared: Strategy · Base Building · Roguelike

20 Minutes Till Dawn
Shared: Roguelite · Top-Down Shooter · Combat

Emberward
Shared: Strategy · Roguelite · Base Building