Games like Caves and Castles: Underworld
Games like Caves and Castles: Underworld include Plague Inc: Evolved, Plants vs. Zombies GOTY Edition, Game Dev Tycoon, The Legend of Bum-Bo, and Kingdom Rush - Tower Defense. We matched them by the tags players give Caves and Castles: Underworld on Steam (Casual, Indie, Adventure, Match 3, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Plague Inc: Evolved
Shared: Indie · Casual · Strategy

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · Strategy

Game Dev Tycoon
Shared: Indie · Casual · Singleplayer

The Legend of Bum-Bo
Shared: Indie · Adventure · Match 3

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

Bejeweled® 3
Shared: Casual · Match 3 · Singleplayer

911 Operator
Shared: Indie · Casual · Singleplayer

Across the Obelisk
Shared: Casual · Adventure · Tactical

Florence
Shared: Casual · Indie · Adventure

Home Behind
Shared: Adventure · Indie · Casual

Moncage
Shared: Casual · Indie · Adventure

Rock 'N' Roll Defense
Shared: Casual · Adventure · Indie

The Scroll of Taiwu : Beyond The Dome
Shared: Indie · Adventure · Singleplayer

Melvor Idle
Shared: Casual · Indie · Adventure

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

Caster
Shared: Indie · Adventure · Casual

Shadow Tactics: Blades of the Shogun
Shared: Indie · Tactical · Strategy

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

Plebby Quest: The Crusades
Shared: Casual · Indie · Adventure

BEEP
Shared: Indie · Adventure · Singleplayer

Streamer Life Simulator
Shared: Casual · Singleplayer · Indie

PuzzleQuest: Challenge of the Warlords
Shared: Casual · Match 3 · Addictive

Kingdom Rush Origins - Tower Defense
Shared: Casual · Singleplayer · Strategy

Donut County
Shared: Casual · Indie · Adventure