Free games like Crusader Kings III
Below are 8 free-to-play Steam games similar to Crusader Kings III, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Crusader Kings III page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Crusader Kings III — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Simulation with Crusader Kings III.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 3
Magic Archery
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Simulation and RPG with Crusader Kings III.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 4
The Lab
Free-to-play alternative to Crusader Kings III — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 5
Landfall Archives
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Strategy with Crusader Kings III.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 6
SuchArt: Creative Space
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Simulation with Crusader Kings III.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
- 7
The Test: Secrets of the Soul
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Simulation and RPG with Crusader Kings III.
You will answer a series of questions that will reveal things from deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to unlock "Secrets of the Soul..."
- 8
The Riftbreaker: Prologue
Free-to-play alternative to Crusader Kings III — no purchase or trial window. Shares Strategy with Crusader Kings III.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.