Idle Big Devil

The most useful line in this review is on the current Steam store page, above the buy button that no longer works: "Notice: Idle Big Devil is no longer available on the Steam store." Underneath it, the download button for a completely different game — a 2020 demo called Idle Hero World — is the only thing still functional on the page.

Idle Big Devil was a free-to-play idle RPG from Hong Kong Spark Software: collect heroes across five factions, push a campaign and a Tower of Infinity, join a guild, fight bosses together, spend a real-money "voucher" currency on gacha summons. It launched in this form on 3 November 2021, though a public test build under the same publisher goes back to 2020, and it ran for almost four years before the developer closed the servers permanently on 31 July 2025 and deleted every account. This review exists because the game had a real, fairly sizeable player base and a Very Positive Steam score for most of its life — and because that entire history is now unrecoverable, which is worth recording plainly rather than just letting the listing quietly rot.

What it actually was

Strip away the "idle" branding and this was a fairly standard hero-collector: summon heroes with star ratings, gear them up, clear campaign stages, climb a Tower of Infinity for one-off rewards, join a guild to farm bosses as a group, and dip into a light PvP arena. The developer's own store description undersells the amount of active tapping involved — "There are very few PVP gameplays in the game," it says, alongside "we hope you can have fun while playing this game in your leisure time" — and more than one reviewer called that out directly. The most-upvoted English positive review (97 votes) opens: "Please take 'Idle' out of the name, more than 75% of the game requires you to play." That's a fair complaint about the genre generally, not this game specifically, but it's one this game earned more than most: the campaign, exploration and targeting all wanted your attention, and the only genuinely idle system was the offline campaign trickle.

For a Chinese-developed browser-to-Steam port, the 3D presentation held up reasonably well. Reviews across the game's life describe it as "attractive" and "colorful," and the hero and boss art is the one thing almost nobody complained about. That's real credit, and it's why visuals is the highest score on this page.

The pay-to-win problem, in the players' own words

Idle Big Devil was never subtle about wanting your credit card. Of the 100 most-helpful English negative reviews across the game's entire history, 23 raise pay-to-win directly, and the highest-voted negative on the page — 278 votes, from a player with over 4,100 hours logged — lays out the actual mechanism rather than just calling it unfair:

"The 'win' part comes only to top 2 guilds in the server, and they are streamers, admins, moderators and people who get tons of free cash vouchers and other resources. They are here from the early beginning, so even if you donate a ton you'll never catch up to them."

That's a specific, credible complaint from someone who put four thousand hours into the game — not a drive-by. A second high-vote review (108 votes) claims a single new character shipped with "a hard pay wall of 900 USD to get to a good level." I can't verify the exact figure, but the shape of the complaint — escalating monetisation pressure on new content — recurs across multiple years of reviews, not just one angry post.

The achievement data backs up how steep the climb got for anyone not spending. Idle Big Devil shipped only four Steam achievements, and the global completion curve falls off a cliff:

Barely more than a third of players who ever earned a Steam achievement got a character to level 40, and only one in twenty built a roster deep enough to hold ten fully-starred heroes. That's not proof everyone else quit — plenty of idle games have thin achievement lists that undercount casual players — but combined with 23% of the negative corpus calling out pay-to-win by name, it paints a genre- typical "whales at the top, everyone else grinding under a ceiling" shape.

Wiped more than once

Server-side account wipes come up repeatedly across the game's history, and they're not all from the same incident. A December 2022 review, at 47 votes, describes one clearly:

"In November 2021, this publisher deleted EVERYONE'S data and made all users start from scratch. They claimed it was to release a 'new version' of the game, but it's the SAME GAME. This publisher allowed people to buy items for money, then they deleted all users and progress."

That November 2021 date lines up with the game's official Steam release, which suggests the "launch" on this platform was really a relaunch of an already-running game, wiping whatever the 2020 test build had accumulated. A separate 2023 review (38 votes) describes losing 260 hours and every purchase to "updates" again, unrelated to the 2021 wipe. Account resets are not automatically disqualifying in a live-service idle game — several genre leaders have done it once, deliberately, with compensation — but two distinct, years-apart wipes that specifically follow real-money spending is a pattern worth a reader knowing about, especially given how the story ends.

A controversy worth naming and dating

A cluster of Idle Big Devil's highest-voted negative reviews are not about the game itself at all. Five of the ten most-upvoted English negatives, all posted in May and July 2020, allege that the developer gave players free vouchers or in-game rewards in exchange for positive Steam reviews. One, at 86 votes: "They paid over 2,000 players to give them up votes, thus their overwhelmingly positive rating, which smells like a violation of Steam's review guidelines." Another, 66 votes, makes the same claim independently: "As I'm writing this review, this game has a very positive rating... I checked why, they simply manipulate the reviewers by giving them a lot of free stuff for writing a review."

I can't verify from a review corpus whether this happened, and I'm not asserting it as fact — but five independently-written, high-vote reviews making the same specific allegation in the same two-month window, about a specific and well-documented practice among Chinese-published Steam games of that era, is a pattern significant enough to report rather than omit. It's also entirely a 2020 story: nothing in the more recent corpus repeats the claim, and the game's score cooled from whatever peak prompted those reviews down to the 81.8% lifetime figure it held at shutdown.

The end

The developer posted a shutdown notice to Steam on 3 July 2025, after roughly two and a half years with no meaningful content updates — the last real patch notes in the feed are from January 2023. The notice reads, in part:

"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... It's been over five years since the very first test version of the game, and we've shared so many amazing experiences together."

Players' final reviews are a genuinely mixed note to end on. Some are angry — "Big thumbs down after years of hard work and now they're closing the servers within a month" — and some are gentle: "Yes, this game is now gone. It has done its service and the creators have taken the servers down... This game was one of my favorites... Rest well, Idle Big Devil." Both are honest reactions to the same event, and both belong in the record.

Where this leaves the score

Judged purely as a game that once existed, Idle Big Devil was a competent, unremarkable, fairly aggressive gacha idler — better presented than its budget suggested, worse behaved toward its players than a game with a Very Positive badge should be, and comparable in the players' own words to bigger names in the genre ("It's ya boi Raid Shadow Legends," one review jokes; another calls it "Worse version of Raid Shadow Legends"). Wanderer has reviewed both of those, and if you want a living version of this kind of game, start there instead.

That comparison is academic, though, because Idle Big Devil is not a purchase decision any more. It cannot be bought, installed or played. Every account was deleted on 31 July 2025. The score here reflects both halves of that: real, if unspectacular, credit for what the game did across four years of live operation, and a hard ceiling because there is currently nothing here for a reader to spend a dollar or an hour on. A 4.0 is the honest number for a genre-typical, pay-to-win-heavy idle gacha that no longer exists.