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Idle CastellanNewsIdle Castellan is releasing on Steam!
Announcement

Idle Castellan is releasing on Steam!

Idle Castellan · published 18 Aug 2026, 18:56 UTC

All newsPlayers around this dateRead on Steam

Climb from a rookie knight to a legend across four difficulties, an endless Nightmare mode, and a skill tree deep enough to make every run your own. Expeditions, infinite-rarity loot, and precision crafting — all waiting for you.

Wishlist it now and jump in on day one. 🗡️

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Game update12 Sep 2026BUG FIXBUGFIX - Thanks for reporting this Phraox · Fixed a bug; when you had the window minimized, it wasn't progressing. Now it will run fine in the background. Sorry for this.Game update29 Aug 2026Small UpdateFixes - Thanks to Mugi3 · Fixed Godly-rarity items no longer being able to drop once you pushed deep into Infinity (past roughly depth 49) — Eternal and Cosmic's ever-climbing drop chance was crowding Godly out of the roll entirely. · Fixed the chest tooltip showing a negative percentage (e.g. "Common -31%") at those same depths instead of just leaving the rarity off the list. · Fixed high Godl…Game update27 Aug 2026Small BalanceBalance - Thanks to Mugi3 · Lifesteal cap raised from 22% to 35%. · Ascended Guardian now tames at 1337 bosses slain, down from 6666.