About the Game

Satan's mysteriously vanished and Hell is in an uproar. Play as one of eight all-powerful and menacing Archfiends and indulge your Machiavellian dark side. Command legions, enlist champions, cast sinister rituals, and trick, rob, and insult your rivals to be crowned Hell’s new Dark Majesty.

Experience Solium Infernum's legendary devilish political machinations. Requiring nerves of steel and a true heart of darkness, every order you give will have lasting consequences. Get into the minds of your rivals, second-guessing their every move both on the map and on the floor of Hell’s parliament as you sling insults and demands in the only truly political strategy game.
- Eight playable Archfiends
- Eight single-player Chronicles
- Single-player Skirmish mode
- Revelations Tutorial Scenario
- Sessional and Asynchronous 2-6 player Multiplayer
- Dozens of Infernal Legions, including unique enormous Titans.
- Champion Praetors and dark Artifacts fit for any Archfiend!

Play 2-6 player multiplayer games with your soon-to-be ex-friends in a single session of deceit and politics, or put your friendships to the test in quick daily bursts with Solium Infernum’s infamous asynchronous multiplayer for a truly harrowing scheme-in-your-sleep experience.

If you love dark art, you’re in the right place. Brimming with striking visions of Hell unlike anything you’ve seen before, Solium Infernum is an infernal feast for the eyes with multitudes of individual dark paintings to enjoy. Every item of the game is accompanied by mind-blasting artwork, a feat declaring Solium Infernum a winner of the 2022 Game Makers Sketchbook.

Originally inspired by Milton’s epic poem, Paradise Lost, League of Geeks’ (known for seminal digital board game Armello) sophomore title is a re-imagining and modernisation of Vic Davis’ critically acclaimed cult-classic of the same name, hailed as a masterpiece of strategy game design.
Once again, prepare to lose yourself within ‘the cold glory of a difficult decision’ as we resurrect Solium Infernum from the depths of Hell.

Note: The following quotes refer to the original Solium Infernum (2009) by Vic Davis.
“Solium Infernum is a political wargame set in hell… The game is now finished, and none of the friends survived. By which I mean, we all hate each other now.”
- Rock Paper Shotgun
“It’s a game about playing other people, in both senses of the word…. This is game design based on psychology as much as rules.”
- Quarter to Three
“More than any game I've played in years, Solium Infernum nails the sensation of staring at a screen and losing yourself in the cold glory of a difficult decision.”
- Game Developer (formerly Gamasutra)
“Solium Infernum kicked my knees out from under me ... this game took my past experience with strategy games and threw it, like a pro basketball player, into a bin eighty feet away.”
- Eurogamer
“One of the best games of the year.”
— Three Moves Ahead

Screenshots
11 images
Version Information
Steam Patch Notes
Official update history
Hey friends,
We just pushed a small patch to all League of Geeks titles to resolve the recently discovered vulnerability in some older versions of Unity (Issue ID: CVE-2025-59489).
There has already been efforts made on the platform (Windows, Steam, Android, etc) and Unity's side, but this patch follows Unity's further recommendations to ensure the maximum available protection for all of you good people.
This is a client side only patch, so there will be no disruption to online play or games in progress.
♥ LoG
Greetings Archfiends!
In our most vile of delicious decisions we have opted to expend worthy tribute in the pursuit of increasing the performance of the Ritual screen.
Whilst performance will vary on every machine, in testing over on our end, we have seen a frame rate increase of 100% on average.
This was a joint effort between two former Solium Infernum team members, tools engineer and technical titan Matthew, for spotting the opportunity to improve the ritual screen experience for you all and putting this initiative in motion, and of course, technical artist and dark sorcerer himself, Stephen, for heeding the call and returning to the Abyssal Pit for another tour of duty to get this done.
This was Stephen's message to the internal LoG slack upon his glorious victory...
[img src="{STEAM_CLAN_IMAGE}/42983950/ddfc32deff4a3cf9ddade4dd12143bf7048622d5.png"]
Note: Stephen is a technical artist, and as such, they are ordained at birth to have beasty PCs teenagers can only dream of. Your mileage (aka; framerate) may vary.
So shout out to Matt and Stephen for their unholy work for y'all. The Infernal Conclave approves.
Anyway, that's the update. That's literally it. There should be no impact to ongoing games, as this update is entirely clientside. Just update whenever you get a chance, and enjoy your buttery smooth ritual screen, sickos!
As always, be sure to LoG any bugs or hiccups you may experience via the in-game bugsender.
<3 LoG
Also, special mention to DarthRagilium from the LoG discord and this special SI meme of theirs that is just... *chefs kiss!
Thanks to everyone for the incredible reception to the Anniversary Update, and especially for reporting those bugs!
We've got some fixes for you...
BUGFIXES
- Fixed player accepting an extort being erroneously charged prestige
- Fixed player rejecting an insult from Vile Calumny not receiving the prestige wager
- Fixed Angelic Host event not working when one of the players has no legions
- Fixed Malevolant Retaliation not capturing defeated POPs
- Fixes amulets not protecting power losses
- Fixed Paperwork Restructure returning erroneous prestige to a player who rejects one of Demand, Extort or Send Emissary on the same turn
Enjoy your forthcoming, tragic rises to power!
<3 LoG
Hail Archfiends!
We have a little hotfix for you today to just clear out a small issue with supporting Legions not triggering correctly when attacking Panda.
Bug Fix
- When attacking Pandaemonium to seize it, and you are not currently excommunicated when beginning the attack, support from your other Legions will now correctly apply.
That's it. Just a small (but obviously extremely important) fix today.
See you In Hell!
<3 LoG
Quick lil hotfix for y'all just stompin' a couple bugs.
BUGFIXES
- Fixed a bug where Dutch was erroneously displaying as a language option.
- Feretory of False Prophets (Artifact of Pride) now correctly gives +1 Healing rate to all units when attached to PoP.
That's it for now. While you're here, why not regale us with a tale of how you oh so beautifully betrayed a "friend" in Solium Infernrum?
<3 LoG
Also, new Archfiend, Belphegor, Paragon of Impiety was released just last month! For those who haven't had the pleasure of meeting him yet, check him out in all his glory below!
https://store.steampowered.com/app/2893270/Solium_Infernum__Belphegor_Paragon_of_Impiety/
Hey fiends!
Just swingin' by with a little hotfix the team have cooked up for y'all that stomps some pesky bugs.
Bugfixes
- Added scrolling to the Notepad - for real this time.
- Fixed some issues with tokens being sorted into the payment tray during payment or consolidation.
- Fixed an issue with Extort orders where the item type could not be changed after reprogramming the order.
- Fixed an issue where Legions could receive double healing by standing between two captured Places of Power.
- Fixed an issue where Schemes could appear as completed in the Select A Scheme window.
- Fixed an issue where tokens allocated to orders were not safe from Corrupt Tribute or Loot The Vaults.
- Fixed an issue where Masked Ongoing Rituals would not appear in the Affected By domain tab.
- Fixed an issue where spending one token on the ritual Convert Tribute would not work.
- Fixed an issue where Lava Damage would not destroy board pieces.
- Fixed an issue where Crown of Bureaucracy and Infernal Taxes could prevent a player completing a Seek Tribute action.
- Fixed an issue where Turn Playback might not start.
That's all for now folks! See ya in Hell!
<3 LoG
And don't forget, for those who haven't seen it yet, we recently released a brand new Archfiend! Check out Belphegor in all his glory below!
https://store.steampowered.com/app/2893270/Solium_Infernum__Belphegor_Paragon_of_Impiety/
We just pushed a quick lil Hotifx following today's patch to resolve some issues where games wouldn't load properly if there were ongoing masked rituals in play, which should be resolved now.
We'll be leaving turn timers paused for a little while longer to ensure proper propagation of this fix. If you experience any ongoing connection issues (like turn timers zeroing out or error messages) please just exit the client - do not forfeit/abandon your games! - download the update via Steam, and dive back in. If you were in a sessional game, it will remain in progress and you will be able to re-enter via the main menu.
Cheers, pals!
<3 LoG
We’re dropping a lil' Hotfix your way!
This hotfix contains:
- A fix for an issue where lava tiles could appear as regular plains tiles.
- An update to the Praetor Duel tooltip in English.
Your turn timers should be unaffected! If there’s some funkiness with the timers, feel free to fling an in-game bug report our way.
See you out there (in Hell!),
<3 Chan + LoG
Hi Archfriends!
We’re bringing you a Hotfix featuring a few key fixes and QoL improvements.
- We’ve noticed a persistent bug where a match will stall when the timer reaches 0:00, so we’ve implemented some fixes and fallbacks to reduce this occurring. If a turn does hang, you should tick over within a minute as our fallback system kicks into gear. And if you’re still experiencing this bug, please help us gather as much data as possible and report it via the in-game bug sender!
- We are disabling the Edict “Expel the Heretic” (this is a vote to Excommunicate a player) as a temporary solution whilst we rework Excommunication. We’ve heard you and understand this Edict often severely sidelines players and can creates a generally unfun experience.
As a more general note, we’ve heard all your feedback on how it feels too easy to frame and excommunicate players utilising a Destruction Ritual for Pandaemonium – we’re actively discussing a rebalancing effort for this! We’ll keep you posted when we have another update.
Also, if you haven’t already, Help us Expand our Encyclopaedia by pointing out the areas where we can refine and clarify information!
Thank you so much, may your dastardly schemes continue!
<3 Chan + the LoG Squad
We pushed a small server hotfix today that fixes an issue a small number of players were encountering where AI Archfiends would sometimes fail to take their first turn in Multiplayer, stalling the game.
All AI should no longer get stage fright upon game start and will now gladly engage in the trial of the throne with their human counterparts.
As this fix is server-side you will not need to update the game in Steam, and the update should be largely invisible. It should not disrupt any games.
Alright, while we're here... question time! Who's gotten a Power Behind the Throne Victory Yet?
<3 Trent & the LoG Squad
Hotfix 2 (v1.0.0.p2) is now live with a few little goodies in here for y'all!
Build Notes:
PLEASE NOTE
There was a server update needed for this Hotfix, so if you are experiencing any connection issues (like turn timers zeroing out or error messages) please just to exit the client - do not forfeit/abandon your games! - download the update via Steam, and dive back in. You’ll see your sessional game in progress on the main menu.
The Hotfix should not destroy any games in progress, nor will it prevent you from creating new games, whether sessional or async.
If you experience any issues please do send an in-game bug report and we'll look into it.
FEATURES
- The ability to disable Screen Edge Panning has arrived! It is now togglable in settings, under 'Controls'!
ACHIEVEMENTS
We have fixed the tracking for a number of Achievements that were not working correctly:
- Red Right Hand - Destroy 6 Legions using Rituals across any number of games.
- Your Dark Majesty - Win a game via Election Victory.
- To Reign Is Worth Ambition - Win a game of multiplayer Solium Infernum.
- The Monster You Think - Get excommunicated by vote, and then win as the Usurper.
- Unstoppable - Win a battle using a Legion that you have cast Infernal Juggernaut on.
- Dark Liberator - Liberate Pandemonium from a Usurper.
- Hatching Vain Empires - Finish a game of multiplayer Solium Infernum.
- Hell is other People - Lose at least one Legion due to an Event that someone else played.
- Excruciation - Lose a Place of Power to The Abyss Leviathan.
- Welcome to Hell - Have victory snatched from you by a Kingmaker or Power Behind the Throne.
- Worse than the Children's Crusade - Lose a Legion as part of the Infernal Crusade.
Progress towards these Achievements will now track correctly. Note that there may be some delay between increasing an increment (ie destroying a legion towards Red Right Hand) and Steam noting that increase.
MISCELLANEOUS
- Raise Abyss Strider will now work when targeting your own cantons! Let the cattle farming begin!
- We’ve made an improvement to the way our backend systems fetch lobby data. This fixes a small issue where both Active and Historic lobbies occasionally would appear empty with no games displayed to the player.
- AI Archfiends will no longer send messages to players referring to other Archfiends as {archfiend_name}. Can't have our AI out here blowing their cover like that.
Thanks, folks!
That is all for Hotfix 2, though it won't be too long before we release our first, fully-fledged Patch! Development is well underway with a bunch of bug fixes and quality of life improvements!
As mentioned in my last post, we’re all so excited and grateful for the wonderful reception to Solium Infernum. To everyone that has delved in and indulged their dark side: thank you so, so much. It has been years and years of cumulative work from our dev team to see SI to fruition. We’re so glad that you love it as much as we do.
And of course, if you are enjoying Solium Infernum, please do leave us a review on Steam. The team reads every one, sharing our favourites with each other. After three long years of dev on this infernal machine wondering if others would appreciate it the way we do, it's so incredibly invigorating to read of all your experiences. Thanks again!
See you in Hell!
<3 Trent & the LoG Squad!
We've been working solidly all day yesterday and today, and so I arrive bearing news of a Hotfix! Actually, two hotfixes!
Hotfixes are small, rapid response patches that follow larger releases like Patches or Updates.
Hotfix 1 is live right now! Hotfix 2 will not be far behind, dropping today at approximately 12am PST.
Hotfix 1 (v1.0.0.p1) Build Notes:
This small hotfix we've just pushed live is mostly small tweaks that will make deployment of future updates, patches and hotfixes much easier, smoother, and ensure minimal disruption to MP games. These changes aren't playing facing and have been rolled out in anticipation for Hotfix 2 later today.
You shouldn't notice any disruption, though we do recommend you ensure you have Hotfix 1 installed before Hotfix 2 is deployed at 12am.
Hotfix 2 (v1.0.0.p2) Build Notes:
PLEASE NOTE
We don't usually put out build notes in advance, so just a reminder that these things listed below will all take effect when Hotfix 2 is deployed at approximately 12am PST.
When the Hotfix deploys, any active games in progress may notice their turn timers zero out and not tick over. Players experiencing this issue will just need to exit the client, download the update via Steam, and dive back in. You’ll see your sessional game in progress on the main menu.
The Hotfix should not destroy or negatively impact any games in progress, not will it prevent you from creating new games, whether sessional or async.
FEATURES
- The ability to disable Screen Edge Panning has arrived! It is now togglable in settings, under 'Controls'!
ACHIEVEMENTS
We have fixed the tracking for a number of Achievements that were not working correctly:
- Red Right Hand - Destroy 6 Legions using Rituals across any number of games.
- Your Dark Majesty - Win a game via Election Victory.
- To Reign Is Worth Ambition - Win a game of multiplayer Solium Infernum.
- The Monster You Think - Get excommunicated by vote, and then win as the Usurper.
- Unstoppable - Win a battle using a Legion that you have cast Infernal Juggernaut on.
- Dark Liberator - Liberate Pandemonium from a Usurper.
- Hatching Vain Empires - Finish a game of multiplayer Solium Infernum.
- Hell is other People - Lose at least one Legion due to an Event that someone else played.
- Excruciation - Lose a Place of Power to The Abyss Leviathan.
- Welcome to Hell - Have victory snatched from you by a Kingmaker or Power Behind the Throne.
- Worse than the Children's Crusade - Lose a Legion as part of the Infernal Crusade.
Progress towards these Achievements will now track correctly. Note that there may be some delay between increasing an increment (ie destroying a legion towards Red Right Hand) and Steam noting that increase.
MISCELLANEOUS
- Raise Abyss Strider will now work when targeting your own cantons! Let the cattle farming begin!
- We’ve made an improvement to the way our backend systems fetch lobby data. This fixes a small issue where both Active and Historic lobbies occasionally would appear empty with no games displayed to the player.
That is all for now, though it won't be too long before we release our first, fully-fledged Patch! Development is well underway with a bunch of bugfixes and quality of life improvements!
Thank you!
We’re so excited and grateful for the wonderful reception to Solium Infernum. To everyone that has delved in and indulged their dark side: thank you so, so much. It has been years and years of cumulative work from our dev team to see SI to fruition. We’re so glad that you love it as much as we do.
Lastly, if you are enjoying Solium Infernum, please do leave us a review on Steam. The team reads every one, sharing our favourites with each other. After three long years of dev on this infernal machine wondering if others would appreciate it the way we do, it's so incredibly invigorating to read of all your experiences. Thanks again!
See you out there… In Hell.
<3 Trent & the LoG Squad
Remember: Please make sure to update your video drivers before playing the game. Outdated drivers may lead to poor performance or crashes!
Current Release
Not available
System Requirements
How to Install
setup.exe
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
3.8 GB
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View AllDownload Solium Infernum for PC with a direct link or via torrent. Get the full version of Solium Infernum for free. Solium Infernum is a Indie released by League of Geeks.