Games like Dungeoncraft
Games like Dungeoncraft include Stonehearth, Castle Story, RimWorld, Total War: WARHAMMER, and Kenshi. We matched them by the tags players give Dungeoncraft on Steam (Tactical RPG, Dungeon Crawler, Colony Sim, Sandbox, and PvE): closest matches first, and among equally close ones the better-known games.

Stonehearth
Shared: Colony Sim · Sandbox · Strategy

Castle Story
Shared: Colony Sim · Sandbox · Strategy

RimWorld
Shared: Colony Sim · Sandbox · Strategy

Total War: WARHAMMER
Shared: Tactical RPG · RPG · Strategy

Kenshi
Shared: Sandbox · Strategy RPG · RPG

Lessaria: Fantasy Kingdom Sim
Shared: Colony Sim · RTS · Sandbox

Going Medieval
Shared: Colony Sim · Sandbox · Strategy

Mount & Blade II: Bannerlord
Shared: Sandbox · Strategy · RPG

Albion Online
Shared: Sandbox · PvP · RPG

Fellowship
Shared: Dungeon Crawler · PvE · RPG

Timberborn
Shared: Colony Sim · Sandbox · Voxel

鬼谷八荒 Tale of Immortal
Shared: Tactical RPG · Sandbox · RPG

Kingdom Heroes 8
Shared: Tactical RPG · RTS · Strategy RPG

Age of Reforging: The Freelands
Shared: Sandbox · RPG · Strategy

Diablo® IV
Shared: Dungeon Crawler · PvE · RPG

Amazing Cultivation Simulator
Shared: Sandbox · Colony Sim · RPG

Colony Survival
Shared: Colony Sim · Sandbox · Strategy

Trove
Shared: Sandbox · PvP · RPG

Kingdoms and Castles
Shared: Colony Sim · Sandbox · Strategy

Craft The World
Shared: Colony Sim · Sandbox · Strategy

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Strategy

Stellar Tactics
Shared: Tactical RPG · Dungeon Crawler · Sandbox

SPORE™
Shared: Colony Sim · Sandbox · Open World

Totally Accurate Battle Simulator
Shared: Sandbox · Strategy · PvP