Castillon is a bite-sized strategy game that blends RTS and TD gameplay. As a renowned wizard you lay claim to a new land to build your castle. But beware, for demon invaders roam the wilds. Grow your castle during the day, then fight off waves of enemies at night!
Familiar, yet its own thing
Inspired by the base-building and resource management of classic RTS titles like WarCraft 3, the defensive experimentation of GemCraft, and the simplified tactics of games like Thronefall and Bad North — Castillon offers a familiar yet unique experience that borrows from some of our favourite titles.
Build & upgrade
Gather up resources and spend them to expand your base as you see fit. There are no limits on building placements. Plan carefully to protect your castle and survive increasingly challenging nightly attacks. Each morning you'll draft a new means of enhancing your hero or base.
Harness mystical elements
Utilise the four schools of magic — Holy, Arcane, Necrotic and Engineering — to defeat your foes. Experiment with different magical combinations to maximise your defenses with unique and powerful elemental towers.
Defend your kingdom
During the day you can help your villagers collect resources, focus on building, or venture out in search of loot and additional magic gems. Build homes, farms, towers, barracks, walls and more to fortify your base. Striking a balance between economy and defense is key!
Gallery 15 screenshots
Screenshots
For press Fact sheet, logos & media
Castillon press kit
Castillon is a super compact experience. The main campaign takes 4–6 hours to complete. You can always adjust the difficulty with modifiers, whilst chasing clever achievements. Castillon has all the hallmarks of a tiny classic RTS base defense, crafted to provide the same fun but distilled in a bite-sized and approachable way.
- Developer
- One Up Plus Entertainment, Sydney, Australia
- Publisher
- 2 Left Thumbs
- Release
- Q4 2026
- Platforms
- Steam
- Genre
- Mini RTS × Tower Defense
- Press contact
- hello@oneupplus.net
- Steam
- https://store.steampowered.com/app/2483570/Castillon/
Continue? More from One Up Plus
More games
Coming soon
Dungeon Buster
Incremental Dungeon-Building Autobattler
Build the dungeon. Send in your hero. Extract the loot. Grow stronger.
Coming soon
Odd Jobs: On The Lot
Co-op Physics Party Sim
Trolley wrangling, 1–4 player co-op chaos.
Free to play
Luffi: Homebound
Cozy Adventure
A short, cozy adventure starring the cutest red panda.
Out now
Spellslayer
Turn-based Tactics Roguelite
Puzzle-tactics roguelite on a grid of doom.