Castillon
By One Up Plus · published by 2 Left Thumbs
About Castillon
Castillon is a game tagged Tower Defense, Base Building and RTS by One Up Plus, launching on Steam on Nov 11, 2026. That is a busy week for games like it, with 133 similar games launching the same week. The quietest week ahead for games like it starts Nov 16. The Steam games most like it include Castle Siege, Tower Age and Eternal Rift Defense.
Castillon is an RTS + TD base-building strategy hybrid. Gather resources, explore and fortify your defenses during the day. Then survive waves of enemies attacks through the night. Level up, improve your stats, and master 4 schools of magic to become the ultimate wizard warrior.
Launch window
Open in Launch Week CheckerBusiest weeks for games like this one in the next 12 weeks:
- Week of Oct 26, 2026 — Packed, 233 similar games
- Week of Nov 2, 2026 — Packed, 164 similar games
- Week of Oct 19, 2026 — Packed, 140 similar games
Quietest: Nov 16, Nov 23, Dec 7.
Also launching the week of Nov 9
All upcoming games
Steam data
Everything Steam lists for Castillon · record updated 2 days ago
Overview
App info
- App type
- Game
- Developer
- One Up Plus
- Publisher
- 2 Left Thumbs
- Website
- oneupplustrust.com
Languages
3 · 0 with full audio| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | |
| Simplified Chinese | Yes | Yes | |
| Spanish - Latin America | Yes | Yes |
Platforms
- Steam Deck
- Unknown
- Controller
- Full support
Features
9Related apps
Patches
Patch notes
11-
Oct 5, 2026 Demo and Full Game Update
Hello everyone! Since our last update, we’ve been improving the demo, adding more to the full game, and polishing the way Castillon plays.DemoThe Glade now has eight waves, a new cave route, and an Ogre boss.You can choose whether to repla…
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Sep 20, 2026 Castillon Update: Building, Battles and Bug Fixes!
🏰 Hey everyone!We’ve been busy with more fixes and improvements since the last update. Thanks for all the feedback and playtest videos! Here’s what we’ve been working on.🛠️ Building and upgrades• Building placement has new camera and cont…
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Sep 16, 2026 Castillon Update This Week
🏰 Castillon Update This WeekHey everyone! Here's what's gone in over the last few days:🏆 Victory and DefeatNew score breakdown on the victory screen (waves, time bonus, resources kept, modifiers). XP is now tied to score.Your allies chee…
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Sep 10, 2026 Demo Update: More magic, and more time!
Hello everyone!This week we have been polishing Castillon, helping new wizards settle in and reminding monsters that walls are not optional.A warmer welcomeThe main menu has new movement and a title reveal. Smoother transitions, updated st…
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Sep 3, 2026 Bug Fixes, QOL and UI tweaks!
Castle Cleanup & Creature-ComfortsEnemies no longer squeeze through snapped wall joints or pile up inside the Castle. So your defences hold!Building objectives now guide enemy swarms toward reachable attack points instead of awkward off-na…
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Aug 3, 2026 Castillon Demo Update: Improved UI, New Spells & Bug Fixes
Hi, Everyone ,We’ve made the UI easier to use, added new spells, and fixed a lot of bugs. We hope you like the new UI design!
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Jun 5, 2026 Untitled
It’s been a hectic week with the demo release and we’re so happy to see so many people enjoying the game!A few bug fixes came in thick and fast and now we’re levelling off a bit so we can start to improve some of the experience thanks to a…
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Apr 20, 2026 2026 Playtest update!
New items since the previous playtest version include:Main Menu - Particle decorations Level Select - Lighting and particle decorations, improved sizing and font readability All levels - Set dressing overhaul, resource collection now flies…
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Sep 15, 2025 Playtest 7th Patch note
Volume slider reset bug fixedBoss health bars more visibleSome movement sounds for tower golem and holy knights fixedSome 3 rune towers firing rate reducedSlight adjustment of neutral camps in level 2Healing shrine cost reductionPickup ui …
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Sep 8, 2025 Playtest 6th Patch note
Day timer now pauses during the 1st day on a new level until you take action.New enemy death vfxHUD enemy spawn icons now have additional + symbols when a mixed spawn is comingCodex bugs rectifiedWizard's auto projectiles no longer whiff t…
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Sep 5, 2025 Playtest 5th Patch Note
Changed volume sliders to logarithmic.Tier 2 Archers population cost corrected to 4.Drafting building upgrades with existing buildings will no longer negatively affect population.Some text fonts enlarged.Build screens and Upgrade screens c…
Screenshots
News
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Oct 19, 2026 · Community Announcements Coming November 11th!
Castillon's development has been on and off for nearly 2 years now. But the last ~6 months have been full-force on making this game the best it can be!CASTILLON will launch on NOVEMBER 11THThe game w…
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Oct 16, 2026 · Community Announcements 🏰 Co-op Is Now Available in the Castillon Demo!
Hey everyone! You can now defend your castle with a friend! Two-player online co-op is available in the demo, so you can build, explore and fight through The Glade and Templar’s Rest together. 🎮 Pla…
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Aug 26, 2026 · Community Announcements Castillon Has Grown—a Lot!
We’ve been having an absolute blast working on Castillon, and we’re so excited to share how much has changed! The game is feeling bigger, friendlier and much more satisfying to play, with new ways to…
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May 26, 2026 · Community Announcements Demo Out Now + WW&W Event!
Today kicks off the Witches, Wizards & Warlocks event hosted by Weekend GamesDiscover over 100 upcoming and discounted titles themed around powerful beings known as Witches, Wizards and Warlocks! To …
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Mar 9, 2026 · Community Announcements Tower Defense Fest
Thank you to Steam for organizing an official Tower Defense Fest! This is a wonderful, highly variable genre that easily feels worthy of dedicated celebration!2 Left Thumbs has 5 total games taking p…
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Mar 9, 2026 · Community Announcements New Playtest with Visual Overhaul
Improved VisualsAn immediate priority of picking development back up, was re-evaluating the current visual style. There was an agreement that the previous version of the game didn't have the visual f…
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Feb 7, 2026 · Community Announcements 2026 Publisher Sale
Today kicks off the big 2 Left Thumbs Publisher Sale!Explore the full event page to scope out loads of discounts, free games, bundles and more! CastillonWe first announced 2 Left Thumb's involvement …
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Nov 3, 2025 · Community Announcements Ancient Costume Game Festival
Thank you to CubeGame for organizing and including Castillon in the Ancient Costume Game FestivalBe sure to check out the event page for discounts, demos and previews of other great indie titles!Play…
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Sep 6, 2025 · Community Announcements ANZ IndieFest 2025
Thank you to The Indie Brew for organizing and including Castillon in the ANZ IndieFest!You can find our trailer included in the ANZ Indie Showcase @46:34Be sure to check out the event page for disco…
Data from public Steam pages, updated daily; 5 days of history. LaunchRivals is not affiliated with Valve or Steam.