Announcement
v1.111.11 - hotfix
fixed a bug causing magic arrow to not check for burn 1000 achievement changed all number displays to display k for 1 thousand and m for 1 million
Steam
castle idler
Also known as castle idler, castle-idler, ci
castle idler is a short, relaxing incremental tower defense game with no waves. upgrade towers, collect coins, and unlock powerful prestige upgrades to defend your castle.
Last update
4 Jun 2026
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- April 2026
- Small Patch to 1.1 versionPrestige nodes that damage all enemies when stars are clicked now synergize with prestige nodes that give money whenever an enemy is hit Added 3 new free population prestige milestones to the prestige tree
- 1.1 - Major Balance UpdateHi everyone. Thank you for all of your feedback and for your patience as we worked on balancing the game. Here is the list of updates for 1.1 version: Added damage indicators when enemies get hit (can be turned off in s…
- 1.03 updatemade cloud save work properly across all platforms fixed a bug causing achievements not unlocking for completing level 20 and 30
- 1.025 update (balancing/bug fixes)1.025 update now allow players to continue playing after beating the game fixed issue with cursor lag balanced some of the levels to make progression smoother added a button in prestige tree that refunds the whole tree…
- castle idler 🏰 is now available on Steam! we'll be running a 10% launch discount for one week to celebrate. your support means the world to us and it would help us tremendously if you leave a review on the game. thank…Patch notes
- January 2026
- Thank you all for playing the demo and providing us so much helpful feedback. One of the main feedback was the prestige upgrade system felt too linear. We changed the prestige system so now you have more choice in which…Store
- December 2025
- 0.375 Demo Update0.375 Demo Update towers show attack radius added Polish language support changed ice tower sound fx
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