Top similar games like Idle Castellan:

Idle Dungeon Crawling x Incremental Clicker: Experience the thrill of limitless growth. Master hero synergies and upgrade priorities to bring strategic depth to every dungeon run

A deep idle RPG with 26 skills, class-based progression, and wave-based dungeon combat. Train skills, craft gear, build your estate, and automate production. Progress keeps ticking even when you're offline.

Dragon Cliff is a Semi-Idle RPG game with deep and complex itemization/skill systems to support endless character builds. Players are to collect adventurers, kill monsters, advance talent trees, enchant/reforge equipment, discover scrolls and finally assemble the most powerful adventure team!

Discover a new style of RPG management gameplay. Experience the fun of an idle RPG that blends an innovative four-view battle system with a deep hero-growth mechanic.

Auto Battler, Incremental, Idle Game

Gravefire Tavern is a dark-fantasy roguelite backpack auto-battler. Recruit adventurers, arrange formations, and create builds through item shape, placement, and adjacency. Brave shifting expeditions where every victory, wound, death, and legacy shapes your tavern and the party that follows.

Explore, gather resources, fight, and build in Arduus, a minimalist medieval fantasy sandbox RPG. No inventory or equipment management, minimal text, and strategic turn-based combat. Explore a vast, procedurally generated open world. Lightweight and designed to run on most computers.

A hardcore medieval fantasy idle RPG, almost entirely in text. Build characters with races, jobs, and epithets. Over 1,000 items to loot. A story 93% of players rated "great." Combat and exploration are fully auto—just check your results. Now in Chapter 5, unfolding across five major updates.

Build a team of Kādomon that fights for you, then push deeper. An Idle Incremental RPG where your creatures auto-battle through endless waves, each with their own skill tree to master. Eclipse your run to unlock permanent power and climb further than ever before.

Train and upgrade gladiators, navigate dynamic narratives, and rise to power among rival houses in Ancient Rome. Build your Ludus, manage gladiators from the sidelines, or take direct control in the arena to shape their fates.

A light rogue-like casual game. Players fight enemies, mine for “minerals,” and gain upgrades to improve their stats. Between rounds, buy items to boost your character. Also includes an idle desktop pet mode—every keyboard or mouse input feeds your mushroom and helps it grow!

While you play your main game, your taskbar guild is fighting too. A tiny MMO guild lives at the bottom of your screen and keeps you company: guildmates hunt, play a match every hour and grow stronger, aiming for the top league title. Characters retire. Your guildmates don't.

Everyone’s favorite laid-back dungeon crawler returns in Soda Dungeon 2. Featuring a new adventure, a whole town to upgrade, crafting, new classes, alternate dimensions, and more! It’s everything you loved about the original plus all the stuff you’ve been asking for.

Your heroes never stop fighting. Build an unstoppable team in a fantasy idle RPG with AFK progression and offline rewards. Collect heroes and powerful gear, master formations, defeat epic bosses, and return to bigger rewards and endless incremental growth.

A complex idle clicker game with infinite possibilities. Prestige, tiers, perks, bosses, different worlds, interest, bets and many more gameplay features are available!

Manage a party of adventurers and delve into the dungeon. As you progress, you will meet new enemies, new gear, a variety of dungeon systems.

Your forge is cold and the loan's due at the end of the month. Take the jobs nobody else wants, hammer out the gear, and hand it to four wanderers who fight like whatever you put in their hands.

Start with a single soldier, end up with a massive army. Strategize and command your units, or let them grind on their own. Progress through many unique progression systems and conquer all the stages.

The Covenant Tower is an incremental tower defense game where you build your tower higher during the day, defend it with archers and catapults at night, and prevent world-ending catastrophes by fulfilling an ancient prophecy. Strategic. Satisfying. Surprisingly addictive...

Sit on the throne as a benevolent (or malevolent) medieval monarch of the modern age and swipe your royal controller either left or right to impose your will upon the kingdom.

A hero who lives above your taskbar. Keepwatch is an idle auto-battler RPG that quietly runs on your desktop — build your camp, gear up your one and only hero, and let them fight while you get back to work.

96 monster cells. Click to kill, idle to farm. Upgrade every monster and Idle Cell separately. Prestige, Evolve, unlock Perks, and conquer Tiers that reset the world for bigger numbers. The grid never ends!

<I Am The Dao> is a cultivation idle game that blends xianxia web novel lore with real-time auto-combat. Starting from the Mortal Realm, you will ascend through the Spirit Realm and Immortal Realm, eventually dominating the boundless cosmos. Each new world you enter unlocks unique gameplay!

a snack-sized auto-battler roguelite. a greedy knight and his unreliable party fight entirely on their own; you pick the dungeon, draft their upgrades and decide what the gold is for. a dungeon takes about two minutes. you'll die. you'll get richer.

In a land torn asunder by incessant warfare, it is time to assemble your own band of hardened warriors and enter the fray. Lead your men into battle, expand your realm, and claim the ultimate prize: the throne of Calradia!

This is a casual strategic placement game. In the aerial world set in ancient China, players will play the role of a descendant of the Immortal Cultivation Sect. Travel through the barren continent, obtain various resources, build your sect, and ultimately ascend to the immortal realm.

Welcome to Accidental Alchemist! Pick up the title Alchemist & unleash chaos in your potion shop, where every mishap creates magical masterpieces. Upgrade, discover secrets, and become the ultimate alchemist!

This is an RPG idle fighting game that does not bloat numbers. In the early stage, you only need to use the highest-level characters and equipment without thinking. But in the later stage, you will encounter some setbacks. At this time, you need to study those low-level characters and equipment.

This is a xiuzhen simulation placement game! From the refining of qi, building the foundation to the ascension of the celestial realm, crossed into the divine realm. （The game has been updated with the english mod, but you will need to select the "english" beta in the properties option to update it）

Lead three Tear hunters in a first-person idle dungeon crawler. Collect monsters' Tears, awaken their powers and wield them in automatic battles. Farm cleared floors while away as you seek the most powerful Tear of all: the Dragon's Tear, said to grant any wish.