CastleOn
- Linux
- Windows

About this game
Welcome to CastleOn!
Castleon is a turn-based castle builder strategy game. Your goal is to either survive for a certain amount of turns, or conquer all the enemy Lords.
Build walls and towers of wood and stone! Put traps and snares, dig moats, raise mottes. Construct an impenetrable fortress that will stand the test of time!
Man the walls! Unleash arrows, bolts, rolling logs, boiling oil pots, pitch and rotten carcasses upon thine enemies! Make them eat cold steel! Destroy their catapults and battering rams! Push back ladders! Dismantle their siege towers! Survive the Third Crusade!
With a massive tech tree, 5 different religions, many different types of policies, 16 criminal abilities, randomized lord relations, random events, and 6 difficulty levels, no two matches will be identical in Castleon! Position of your castle is not predetermined on maps and you get to pick and customize every aspect of your kingdom!
Features:
- Over 70 different buildings, walls, towers and traps
- Many different units - from the basic Spearmen and Archers to the powerful Templar and Teutonic Knights, hasty Horse Archers, elusive Assassins, mighty Varangian Guards.
- Manage diplomacy with over 50 different historical Lords who reigned in the second half of 12th century - Richard the Lionheart, Saladin, Henry VI, Baldwin the Leper King, Isaac II Angelos, Stefan Nemanja, Kulin Ban, Knut Eriksson, all the Alfonsos and Sanchos of Iberian Peninsula, and many more!
- Research over 90 different technologies, all of which change the way certain buildings or units function.
- Choose between 5 different religions, each offering 10 special passive bonuses based on the level of your peasants' faith. If you prefer not to mix religion and games, not to worry - they are optional and can be disabled and enabled in the menu.
- Use criminal abilities to gain bonuses at the cost of corruption! Corrupt court will reduce the effectiveness of your buildings and resource gathering, so use criminal abilities wisely!
- Fight in the Holy Land, Balkans, Iberian Peninsula, Scandinavia and central Europe! Survive on over 50 different Skirmish maps set on the locations of worlds famous castles, as well as multiple full historical campaigns featuring real battles and custom win and lose conditions.
- Create your own maps in Editor, be it skirmish or custom campaigns!
System requirements
- OS
- Windows 7 / 8 / 10 / 11
- Processor
- Intel© Pentium© CPU G4560 @ 3.50GHz × 2
- Memory
- 4 GB RAM
- Graphics
- 1 GB
- Storage
- 600 MB available space
Support links
Showing 19 of 19 achievements19 of 19

Admiral
Have 20 galleys on a map at once.

The Architect of War
Place a trebuchet on top of the round tower.

Besties
Reach 80 influence with any greater lord that isn't your puppet.

Conqueror
Conquer all greater lords on a skirmish map.

Criminal
Reach 85 corruption.

Flurry
Have a unit attack at least 4 enemies at once.

Greek Fire
Light a sea tile on fire.

Hoarder
Have 5000 food at once.

Inferno
Have 80 fields on fire at once.

Killing Fields
Kill 10 units with killing pits, iron pits, or rolling logs in a single turn.

Kingdom of Heaven
Use Coronation ability on The Leper King Baldwin.

Merriment
Have 100 happiness.

Plague
Have 50 diseased fields at once.

Sniper
Kill a ranged unit with a ballista.

Stop hitting yourself!
Let an enemy defeat themselves on a spiked barricade.

There is always a way
Have 1000 wood while having 0 woodcutters.

The Negotiator
Send a delegation to everyone at once with Dedication technology.

Vassalage
Turn any lord into your vassal.

Zealot
Have 100 faith at population of 100 or more peasants.