Screenshots
Watch trailer on Steam ↗CastleOn Scriptum
Lord Castleon · Published by Lord Castleon
Last updated 28 Sept 2026
Build a castle and defend it from your enemies! Construct towers, place traps, train and command units in this historical, manuscript-themed mix of Tower Defense and classical Real Time Strategy.
Simulation, Strategy · 2027 · More free games
About this game
CastleOn Scriptum is a tower defense game in which you protect your Keep either with static defences such as traps, gatehouses and towers manned by archers, crossbowmen and catapults, or by taking a more active approach and training different types of melee units like footmen and knights and slaughtering enemy up-close.
Defend your Keep
Stop the enemies from reaching your keep! Build towers and train over 20 different types of ranged units. Rain fire and arrows upon them!
Command your Armies
Train over 20 different types of footmen and knights, or hire various mercenaries to battle the invaders!
Place Traps
Killing pits, caltrops, boiling oil, rolling logs, moats and many more fun traps are at your disposal!
Manage the Economy
Make the peasants harvest gold and lumber! Construct farms, blacksmiths, lumber mills and more!
Customize
Upgrade your kingdom the way you want to, fine-tuning your playstyle! Most buildings have different upgrade paths, and your choices matter.
Factions
Do you prefer Norman longbow superiority, heavily armored Saxon Knights, or the Byzantine impenetrable walls? Every faction has unique units, buildings and playstyle.
Expand
Defeat bandits and brigands, claim their treasures and lands for your own!
Endless Mode
Every mission lasts between 10 and 20 minutes, but you can attempt Endless Mode on any missions, with increasingly difficult waves of enemies until you inevitably fall.
Features
- Play as Normans, Saxons, Franks, Slavs, Greeks and more, each with their own unique playstyle, units and buildings
- Over 50 different missions, each playable with any faction
- Multiple difficulty levels
- Highly replayable
- Over 50 hours of gameplay
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 / 11
- Processor: Intel© Pentium© CPU G4560 @ 3.50GHz × 2
- Memory: 2 GB RAM
- Graphics: 1 GB
- Storage: 1 GB available space
Recommended
- OS: Windows 10 / 11
- Processor: AMD Ryzen 5 5600H
- Memory: 4 GB RAM
- Graphics: 1 GB
- Storage: 1 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Quality of Life Update - May 25th
ImprovementsAdded Pause button (also activated via SPACE). You can construct buildings, begin training and issue orders while the game is paused.Added x1, x2, and x3 game speed (which can be changed via F1, F2 and F3 keys) so you no longer have to wait around after building a massive defense.When placing farm next to a gold mine, lumber peasants automatically move to harvest from gold mine without player input.BugfixesAlt-tabbing out of the game now stops music and all soundsRandom tier 3 buildings are no longer available on second map where they shouldn't beFire no longer teleports between two different levelsFire can now appear on diagonal terrainDefeated bandit camp now correctly plays destruction animation instead of just disappearingMusic is no longer auto-reset to 50% every time you enter the gameA massive thank you to all players who helped me test this out and reported bugs, and to Lutel and Richard Yorke who uploaded videos! Your support means a lot!Read full article on Community Announcements (Lord Castleon)
