9 Circles of Hell Idle: what it is, rules and how to leave it running on your PC

What is 9 Circles of Hell Idle

Portuguese-language browser idle RPG where you hunt, seal and evolve demons across ten regions based on the nine circles of Dante's Inferno and Paradise. It has global bosses, a player market and the game's own automations for sealing, healing and swapping demons. It opened to the public on Sep 19, 2026 and still presents itself as a game in testing.

• Demons are hunted, sealed in grimoires and evolved; the party takes six of them on the hunt.
• The map has ten regions, one per element: the nine circles of Hell (from Limbo to Treachery) and Paradise, each with four hunts ordered by level.
• There are global bosses, with rewards by damage tier and by ranking position.
• The game itself has automations for sealing, healing and swapping demons.
• Closing the game with a hunt open turns on offline training: it yields half the XP of the live pace and uses potions; without potions, it yields nothing. On return, common loot turns into souls.
• There's an Online Market between players (bids in souls or in obols, the paid currency), mail, global chat and rankings.
• It opened to the public on Sep 19, 2026: the invite code was no longer required and alpha accounts started over from zero.
• Since Sep 21, 2026 the server checks level, attributes, routes, bestiary and speed; anyone who edits the save may have the account blocked or wiped.
• Only one game tab runs at a time in the same browser; the others stay paused, with the option to take over the game.
• Voting on TopIdle earns one point per day, spent in a rewards shop inside the game.

What the community says on TopIdle

On TopIdle, 9 Circles of Hell Idle got 53 votes in September 2026 — #7 most voted in Other idle games, out of 22. TopIdle marks the game as verified.

The community rating is 4.9 out of 5, with 5 reviews: gameplay 5.0, polish 4.8, and real-money trading (RMT) 4.8.

The full reviews, with comments from players, are on the 9 Circles of Hell Idle page on TopIdle. IdleDeck has no connection to TopIdle or to the game: the numbers come from there and don't change what the game's rules say.

Community votes and ratings on TopIdle, updated Sep 25, 2026 at 11:54 AM BRT. The vote count restarts on the 1st of every month.

Do you need to keep the tab open?

According to the 9 Circles of Hell Idle site, the account keeps progressing with the tab closed.

Closing the game with a hunt open turns on offline training: half the XP the party earned live, consuming potions until they run out (without potions, it yields nothing). On return, the common loot the training would have dropped is sold for souls. Ao voltar, além do XP, você recebe as almas dos despojos comuns que o treino teria largado. (source)

So here, keeping the tab open is more about following the account, responding to events and noticing when something goes wrong than about keeping progress.

Rules: multiple accounts, automation and VPN

The 9 Circles of Hell Idle site doesn't publish rules on multiple accounts, automation, VPN or real-money trading (checked Sep 22, 2026). Before opening a second account, ask on the game's official channels.

• Multiple accounts: the site doesn't say. The site has no rule on having more than one account. Technically, only one game tab runs at a time in the same browser.
• Automation (bots, macros, scripts): the site doesn't say. I found no rule on external bots or macros. The game has its own automations (sealing, healing, swapping demons). The security note of Sep 21, 2026 warns that anyone who edits the save or speeds up the game may have the account blocked or wiped. O que o jogo faz sozinho: selar, curar e trocar de demônio. (source)
• VPN and proxy: the site doesn't say. The site doesn't mention VPN or proxy.
• Selling items for real money (RMT): the site doesn't say. I found no rule on selling accounts or items for real money. The game has an official Online Market to buy and sell demons and items between players, with souls (in-game currency) or obols (paid currency). Compre e venda demônios e itens com outros jogadores. (source)

How to leave 9 Circles of Hell Idle running in IdleDeck

1. Download IdleDeck (free, Windows 10 and 11) and link the app to your IdleDeck account — it takes a minute.
2. Click Add account, go to Other game or site and paste 9circles.duckdns.org.
3. Sign in to your 9 Circles of Hell Idle account in that window, just like in the browser. Each IdleDeck account has its own login, cookies and cache — repeat step 2 for each account the game's rules allow.
4. Turn on alerts: Windows notification, sound or a Discord webhook to know on your phone when the account drops.
5. You can minimize. Since the game progresses offline, here IdleDeck keeps the account open, organized and signed in, and alerts you when it drops or goes back to the login screen.