About This Game

In a world shattered by the Void's invasion,

the counterattack begins from the Demon Castle, the last refuge standing at the edge of ruin.

Demon Ark is an idle build RPG built around endless experimentation and proof through battle.

Dispatch your heroes, face your limits, and redesign the perfect party.

■ We recommend playing without spending

If you want to fully enjoy the journey of collecting gear, refining your party, and growing beyond your limits, try playing without making purchases first. We plan to base future balance adjustments and updates on playing without spending.

The game offers optional in-game purchases, including Diamonds, progression support packs, storage expansions, and a monthly check-in pass. Some purchases can speed up progression or make battles easier.

■ You Design. Your Heroes Prove It.

Expeditions and battles play out automatically. But victory itself is not automatic.

Which jobs to combine, and which hero should carry which gear, is entirely up to you.

Review the results, find what went wrong, and rebuild your party for the next attempt.

■ Jobs Have No Hard Limits

Experiment with countless combinations created by 14 main jobs and 14 sub-jobs.

Give fragile damage dealers the survivability they need, or turn support heroes into the core of your battle plan.

Build a stable party with proven combinations, or complete your own strange setup that no one else would think of.

■ How Do I Use This Weird Gear?

Randomized gear options can be ordinary, surprising, or just plain confusing.

But in Demon Ark, no option is meant to be thrown away.

Even the strangest piece of gear can become a core item that unlocks your party's potential once you find the right hero and sub-job for it.

Read the gear, discover the fit, and create a new build.

■ Make Each Auto Expedition Safer and Faster

Check who fell first, which enemy stopped your party, and whether your farming speed is good enough.

Build a party that survives longer, or push farming efficiency with specialized gear setups in dungeons you have already stabilized.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some visual assets in Demon Ark: Idle RPG were created with the assistance of generative AI, including monster artwork, item and equipment icons, background images, and Steam store marketing assets such as capsule images and logo artwork. Unit character graphics and UI assets were produced separately as non-AI commissioned/manual artwork. All AI-assisted assets are reviewed, selected, and edited before being included in the game or store page. The game does not generate AI content during gameplay and does not connect to external AI services while running.