Idle Big Devil

Idle Big Devil

HONG KONG SPARK SOFTWARE TECHNOLOGY CO., LIMITED · November 3, 2021 · Free to Play, Strategy, Casual, Idler, Indie

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PC
Very Positive82% · 3,810
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No store is currently selling Idle Big Devil. It released on November 3, 2021 and was developed by HONG KONG SPARK SOFTWARE TECHNOLOGY CO., LIMITED. We keep tracking it across every store we cover, so set an alert below and you will know the moment it is on sale again.

Screenshots

About Idle Big Devil

✦ AI summary

Collect and evolve dozens of unique heroes from five factions to battle through campaign missions, towers, and guild boss raids in this idle RPG with 3D graphics. Progress passively while strategically combining heroes, equipping powerful artifacts, and upgrading buildings to dominate a world fractured by darkness and fallen princes.

Humans, Demons, Elves and Undead coexist peacefully on the same continent until the balance was broken: A fallen prince of the human kingdom accepted the contract with Undead, and evil spirits arose from the hell to cloud the minds of most creatures.
In such a critical situation, you are appointed by the King as a new lord with the duty to gather new heroes to fight against the darkness.
One of the elders secretly tell you a secret that the energy of heroes can be combined.
And the High Priest creates a device to duplicate heroes. All duplicates have no feelings or minds.
With all these, you are going to prepare yourself for monsters, fallen heroes, and other competitive lords.
The aim of the game is to collect and assemble a group of Heroes and to continuously improve and equip them with new items. Progress in the campaign mode, tower of infinity and many other modes to be rewarded with powerful Artifacts, Equipment or Set Items.
  • An IDLE game with 3D graphics.
  • Dozens of heroes to collect from 5 different factions, each with unique skills.
  • Summon heroes, train them to become more powerful and beat various contents like challenges, explorations or arena.
  • You also can join or create a Guild, gather friends and allies to fight mighty bosses to get the best rewards.
  • Improve your buildings to get more resources.
  • We intend to create an interesting idle RPG game for our players. The design of each hero is unique.
  • There are very few PVP gameplays in the game. Some gameplays are designed to let players help each other and get more rewards together.
  • We hope you can have fun while playing this game in your leisure time.
  • The game is still in the process of continuous improvement, so any comments/suggestions you have is greatly appreciated.

Idle Big Devil — game info

Platforms
Windows, macOS
Steam Deck
Playable
Player modes
Single-player, Online co-op
PC Game Pass
Not included
More games like this:Mac games

DLC & expansions

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 31, 2025
Server Shutdown
4 found this helpful
Recommended Nov 30, 2025
Yes, this game is now gone. It has done its service and the creators have taken the servers down. I want to start this off by mentioning that I started playing this game years ago. It was a game that I could sit and grind while not being worried about the big things that come with a grindy game. The graphics weren't anything special, but it had a nice, low drive to it that allowed me to run this on the device I had at the time. This game was one of my favorites and even though I didn't get as many hours on it as I wished to, I still miss it dearly. Rest well, Idle Big Devil.
2 found this helpful
Recommended Apr 15, 2026
The game was fun, it was a bizarre chinese like mobile like game, it had every aspect of those old games you found on the browser back when flash was alive, it was fun for a while, but it was a cash grab thats obvious and doesnt have waifus so way less points for that, overall, i had fun, weird, but it was one of the best i've ever played even if it was weird, bizarre, the devs knew what players wanted and they wasnt scared to do it
Recommended Aug 14, 2025
[h1] …
Not recommended Jul 29, 2025
And another F2P Games goes down the River. https://store.steampowered.com/news/app/1158980/view/508458485971682625 for Preservation: [quote]Server Shutdown Announcement With heartfelt thanks Dear Lords, It is with great sadness that we must announce Idle Big Devil will officially end its service on July 31, 2025. On that day, the game servers will be closed and all account data will be deleted. Until then, the game will remain accessible as usual. As a small thank-you, we'll be sending out some in-game gifts during the final two weeks before shutdown. It's been over five years since the very first test version of the game, and we've shared so many amazing experiences together. We still remember how early updates often brought unexpected issues. Even when new content didn't fully meet expectations, many of you still took the time to leave detailed feedback and suggestions. Some of you created beautiful and helpful guides, helped new players, and stood by us from the very first version to the latest—through all the ups and downs. We're also deeply thankful to our community moderators, who helped us immensely—not just in managing the community, but also in bridging language g…
Recommended Jul 19, 2025
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