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Idle Castellan

by mN GamiN

★ 75%

Price N/A

Avg Players 1

Reviews 4

Released Aug 21, 2026

2DAdventureAuto BattlerHack and Slash

Prestige loop

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Idle Castellan offers a long-haul progression system where you advance through four difficulty tiers and endless Nightmare mode by customizing your character through an expansive skill tree. The core loop pairs offline expedition rewards with active gear hunting and crafting to fine-tune your stats, designed for players who enjoy perpetual character building without hard caps or completion walls.

About this game

Players, last 29 days

Peak 3 · Low 0

Daily peak concurrent players, sampled once a night from Steam.

What players are saying

▲ Recommended 2 hrs

verry chill game to have in the background!

0 found helpful Steam ↗

Reviews are by Steam users, hosted on Steam.

Latest updates

BUG FIX

10 days ago

BUGFIX - Thanks for reporting this PhraoxFixed a bug; when you had the window minimized, it wasn't progressing. Now it will run fine in the background. Sorry for this.

Small Update

24 days ago

Fixes - 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 Godly ranks displaying with a broken roman numeral past rank X, e.g. "Godly XXXXX" instead of "Godly L".Chest tooltip now lists Godly after Eternal and Cosmic instead of before.Capped how high lifesteal, block chance, and attack speed can roll on a single piece of gear — 8% for lifesteal and block chance, 12% for attack speed, regardless of rarity.