Top similar games like Heroes of the Citadel:

Yokai Idle is a relaxing idle RPG inspired by Japanese folklore. Collect over 50 Yokai, craft equipment with powerful modifiers, and create unique builds as you progress through the historical Ages of Japan and guide the island of Onigashima into a new era 🎎

Hatch eggs, collect voxel creatures and lead them into battle. Your Voxmons orbit you in living rings, pick their own targets and fight for you while you explore. Cross floating islands, unlock rare Large and Huge forms, and build the squad that clears everything in its path.

A roguelite autobattler where your build can outlive your creatures. Assemble three mutants with risky powers and wild synergies, position your squad, and watch them fight. Choose a mutation and pass some upgrades to the next generation. Play Solo or asynchronous online PvP.

Soul Guardians is a 2D cross-scroll action RPG game. Hired as a mercenary of the Empire, the protagonist goes on a journey to stop the conspiracy of the Dark Forces Undertaker. Raising unique characters, collecting and combining chain arts to enjoy your own hot action!

Dungeons and Raids is a gacha game where you will collect heroes and make them fight in the dungeons...

Undealt is an idle RPG that lives in the corner of your screen. Four heroes fight on their own while you work or play — you come back to equip the loot, forge better gear, learn skills and collect cards that rewrite the rules of combat. Free to play.

Idle blacksmith RPG. Forge weapons from a wooden club to a plasma rifle across dozens of eras, gear up your hero and duel real players in the PvP arena. Your hero keeps battling while you're away — come back, collect the loot and forge something stronger.

Build and customize your own arcane aquarium in this cozy collection/idler game. Use your magic to summon juvenile cute creepy fish. Tend to them and watch them grow. Make discoveries, expand your collection, decorate your tanks with art and plants.

A tiny idle RPG that lives on your desktop. Park it on your taskbar or anywhere on screen, and four heroes march through 7 acts while you work, study or play. Gear them up, shape their skills, and come back to loot and levels. Fully offline: no account, no servers, no microtransactions.

An epic auto-battling RPG unveils right in the corner of your desktop! Watch your slime push through endless floors and crush giant bosses, or team up for thrilling 4-player co-op! Combine deep star charts, class trees, and loyal buddies to craft your ultimate build.

Hello guys I am bringing you this time around a small cozy little game about greed and grinding!! If you played my previous games you should know what to expect! If you didnt... This is a small Idle game where the character battles autommatically while everything you do is drink a coffee.

A character interaction-focused adventure featuring charming designs and art from the Japanese indie circle TashiKani! Transformed into a half-demon, the former servant Shiro must evade capture and befriend the townsfolk to survive... and thrive!

Enter a medieval orc-themed idle RPG where every choice matters. Pick 1 of 3 character types, build your team, place your items wisely, and overcome increasingly difficult battles in a satisfying climb toward greater power.

The Cinder Throne is an Idler RPG where you passively kill enemies, level up, loot enemies, change pieces of equipment and find spells. Create powerfull synergies. Rebirth and come back stronger than ever

Idle archer RPG: your archer auto-battles endless waves of monsters while you forge and merge gear, socket runes, level twelve skills, raise pets, duel rivals in the PvP arena and team up with friends and guilds.

You crossed a portal to survive, but what will you become on the other side? Explore dangerous regions, recruit mecha maidens, craft gear, and fight endless waves of monsters and bosses in this epic Idle RPG. Play solo or with others, grow steadily, and see how strong you can become.

Your army keeps fighting inside the taskbar while you get on with your day. AFK is an idle RPG built as a fake desktop OS: drag windows, forge gear across ten rarity tiers, climb an endless tower, and settle scores in asynchronous PvP the server replays back to you.

Lonely Knight is a game that combines idle and roguelike elements. Defeat monsters and embark on a journey to find companions for the lonely knight. Experience growth through idle gameplay and test your strength in dungeons!

Play as the only healer of your guild, and make sure your mates don't run to their doom... Heal your way through dungeons, grow your party, loot dungeons in this solo party-based semi auto-battler RPG.

Collect and enslave alien creatures. Increase your creatures skills by gaining experience from battles. Collect resources to craft armor and nanites so that you can collect even more creatures. Battle other players online and become the champion.

"Divnozemye" is a card game like the famous game "Arcomage" (from "Might&Magic"), but in the setting of folk fairy tales and with its own feature - heroes.

Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival.

"3D Survivors" is a flashy and vibrant casual game. Take down the approaching monsters from all directions with high firepower. Obtain various power-up items to prepare for the final boss. Use the acquired score to upgrade the characters.

An online idle RPG at the bottom of your screen. Hunt and grow while you work or browse, then upgrade your gear, challenge bosses, join raids, and duel other players. Steam Community Market support is planned after launch for buying and selling eligible items.

Idle Titans is a semi-autonomous MMORPG. Make friends, join a guild, and decimate the worlds titans in their dungeons.

Join four Slavic heroes into their journey to save and avenge villagers against foreign intruders in this cartoon Slavic themed Dungeon Crawler RPG. Help Pagan Gods in exchange for piece of their power, use dozens of armors and weapons and native class skills to aid you to slash your opponents.

Build a city of science and magic, power up cloned heroes through automated dungeons, inherit their strength through cloning, and recycle the rest for science in this casual idle city-builder with deep RPG progression and competitive auto-battle leagues.

Explore a voxel world across seven biomes, face towering guardians and find your style among 49 weapons. Craft equipment, combine movement accessories and tame animal companions in Wilderune, an action RPG built around exploration.

Just leave it running. The rest takes care of itself. In a small corner of your desktop, a 3D character fights and loots all on its own. Snag good gear and trade it on the Steam Community Market. It's idle, yet you can't stop watching. Addictive looting at its finest.

Plant strange seeds, grow adorable little horrors, and choose their fate: raise them as battle companions or harvest them for potions. Delve into the Abyss, battle cursed creatures, discover rare seeds, and strengthen your haunted garden through growth, crafting, and dungeon runs.

An idle auto-battler that sits in the corner of your screen while you do other things.

An idle RPG companion for your taskbar. While the game is running, your Monto farms stages, defeats bosses, gathers loot, and battles other players in asynchronous PvP. Hatch new Montos, refine your build, trade valuable drops on the Steam Community Market, and climb PvP and PvE rankings.

Beastrun is 1D auto battler that's all about building a party that synergizes.