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Ollie's Castle

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Ollie's Castle screenshot 1
Ollie's Castle trailerWatch trailer on Steam ↗

Ollie's Castle

SleeplessDust Games · Published by SleeplessDust Games

Last updated 28 Sept 2026

Rebuild a fallen kingdom in this cozy 3D idle-adventure game. Gather resources, farm crops, care for animals, and fight off monsters to restore your castle to its former glory!

Free to PlayComing SoonDJCTQ 10Full Controller Support

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Simulation, Casual · More free games

Explore Ollie's Castle, where you rebuild a fallen kingdom by gathering resources, farming crops, caring for animals, and battling monsters. Dive into this charming 3D idle-adventure game from SleeplessDust Games.

About this game

Ollie's Castle blends idle gameplay with 3D adventure. Gather resources, automate gains and restore the old castle lost to ruin.

Build, Gather and Automate

  • Chop trees, mine ore, harvest crops, and fight enemies to gather basic resources and rebuild your world

  • Unlock refineries and workbenches to craft more advanced materials

  • Hire helpers and creatures to help gather for you while you're exploring

  • Level up skills to unlock bonuses and rewards

Restore your Kingdom

Rebuild 12 total parts of your castle including 

  • Library

  • Throne Hall

  • Vault 

  • Trophy Room

  • And more!

Every unlock brings you one step closer to unlocking permanent bonuses for future playthroughs!

Rewards

  • 20+ pets to earn and unlock. Bond with your new friends to earn extra color variants

  • Rebuilding certain structures will allow for random events to spawn that will give temporary boosts

  • Prestige to earn points used to unlock new pets and permanent bonuses

Explore the World

Meadow: 
This is where you chop trees, and bring them to the lumberyard to turn them into planks. 
Hire Tree Hounds to help gather wood, or Mechabots to assist with loading logs onto the sawmill.


Mine:

Brave the caves to mine valuable ore. Hire Golems to collect for you while you're away.
Repair the forges to be able to smelt down your ore into ingots.

Farm:

Farm, Grow and fertilize crops with the help of Mushroom workers.
Unlock animals to feed and care for, and hire an unlikely farmer to lend a hand.

Forest: 

Fight your way through enemies to collect Corrupt Shards and hire soldiers to fight beside you.

Rebuild ritual sites and cleanse the corruption from the shards to receive crystals.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 or Higher
  • Processor: Quad-core Intel or AMD, 2.5 GHz or faster
  • Memory: 8 GB RAM
  • Graphics: DirectX 11 or 12 compatible graphics
  • Storage: 10 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system

Supported Languages

English*
*languages with full audio support

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