Games like Destroy The Monoliths
Games like Destroy The Monoliths include Wall World, The Binding of Isaac: Rebirth, The Binding of Isaac, Hades, and Nuclear Throne. We matched them by the tags players give Destroy The Monoliths on Steam (Tower Defense, Mining, Action Roguelike, Difficult, and Top-Down): closest matches first, and among equally close ones the better-known games.

Wall World
Shared: Mining · Tower Defense · Roguelite

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Difficult · Roguelike

The Binding of Isaac
Shared: Action Roguelike · Difficult · Roguelike

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Nuclear Throne
Shared: Action Roguelike · Difficult · Roguelike

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

Enter the Gungeon
Shared: Action Roguelike · Difficult · Roguelike

Wall World 2
Shared: Mining · Tower Defense · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

Rogue Tower
Shared: Tower Defense · Roguelike · Strategy

Vampire Survivors
Shared: Action Roguelike · Roguelite · Roguelike

Curse of the Dead Gods
Shared: Action Roguelike · Difficult · Roguelite

FTL: Faster Than Light
Shared: Roguelike · Difficult · Strategy

Necrosmith
Shared: Tower Defense · Action Roguelike · Roguelite

Hades II
Shared: Action Roguelike · Roguelite · Roguelike

Ravenswatch
Shared: Action Roguelike · Roguelike · Difficult

Dungeon of the ENDLESS™
Shared: Tower Defense · Roguelike · Strategy

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

Tower Dominion
Shared: Tower Defense · Roguelike · Base Building

UnderMine
Shared: Action Roguelike · Roguelite · Top-Down

BALL x PIT
Shared: Roguelite · Action Roguelike · Roguelike

Dungreed
Shared: Action Roguelike · Roguelite · Roguelike

Halls of Torment
Shared: Action Roguelike · Roguelite · Roguelike

Risk of Rain (2013)
Shared: Action Roguelike · Roguelike · Difficult