Solium Infernum

Hell is Other People—And Their Lawyers

by League of Geeks

Strategy gameSteam$39.99

Reviewed by the Rankeno Strategy & Sim DeskUpdated Oct 2026

Solium Infernum is a Strategy game for Steam. Highly recommended for patient players, with real reservations about its learning curve and single-player AI. It scores 8.4 out of 10 — Great.

8.4Great#62 of 209 Indie games

How it scored How we score

  • Design8.5
  • Innovation9.0
  • Value8.0
  • Utility8.0

Each of the four criteria is scored out of 10. The headline score is our editorial verdict across them — weighing all four rather than taking an arithmetic average — and every review publishes the breakdown so you can see where the verdict came from.

How this score compares with every review we publish — Score atlas.

In one line

A sharp, psychologically devious strategy game that proves the pen is mightier than the pitchfork, provided you’ve filed the correct paperwork first.

Released Feb 22, 2024

The verdict

Highly recommended for patient players, with real reservations about its learning curve and single-player AI.

What we liked

  • Deep, intricate political complexity
  • Asynchronous multiplayer is thoughtfully implemented
  • Gorgeous, atmospheric art direction

What could be better

  • Steep learning curve for newcomers
  • AI can be predictable in high-level diplomacy
  • Matches can feel slow for those used to traditional 4X

Pricier than 99% of the 202 Indie games we price-check.

Is it for you?

Best for

  • Hardcore strategy enthusiasts who value mind games over micromanagement.
  • Board game veterans looking for a digital experience that captures the "around the table" tension of Diplomacy.
  • Busy professionals who want a deep strategy fix that fits into an asynchronous schedule.

More reviewed in Indie

Overview

In the crowded arena of grand strategy, most titles are content to let you paint the map with the blood of your enemies. Solium Infernum, a ground-up reimagining of Vic Davis’s 2009 cult classic by League of Geeks, has a far more devious ambition. It isn’t interested in tactical brilliance on a battlefield; it wants to see how well you can navigate a hostile boardroom.

The premise is simple: The Prince of Darkness has vanished, leaving the Infernal Throne vacant. You are one of eight Archfiends vying to claim it. However, Hell is not a lawless wasteland of fire and brimstone. It is a rigid, hyper-bureaucratic nightmare governed by the Conclave. You cannot simply march your legions into a rival’s territory because you feel like it. To wage war, you must first engineer a legal justification—a casus belli—usually by hurling insults or making outrageous demands until your opponent loses their cool.

League of Geeks, the studio behind the whimsical yet cutthroat Armello, was a fitting choice for this revival. They’ve taken a game known for its brilliant mechanics and impenetrable interface and rebuilt it as a modern, visually striking experience without sanding off the sharp edges that made the original a cult favorite. This is a “Grand Strategy” game in the truest sense, where the “grand” refers to the scope of your deception rather than the size of your army. It occupies a unique market position: it’s the thinking person’s 4X, trading the rapid-fire clicks of an RTS for the slow, agonizing tension of a high-stakes poker game played over the course of weeks.

Key features

  • The Conclave & Prestige: Victory isn’t measured in kills, but in Prestige. Every action—from winning a ritual duel to successfully insulting a peer—contributes to your standing in the eyes of Hell’s parliament.
  • The Bazaar: A central marketplace where Archfiends bid Tribute tokens (souls, ichor, hellfire) for powerful Legions, Artifacts, and Praetors. The catch? You bid blindly, never knowing if your rival is about to outspend you by a single soul.
  • Asynchronous Multiplayer: The game’s true “secret sauce.” Players can take their turns over hours or days, receiving notifications when it’s their time to act. It turns a strategy game into a persistent psychological weight in the back of the mind.

Analysis

The core brilliance of Solium Infernum lies in its Action Economy. In the early game, you are limited to a mere two orders per turn. This creates an exquisite kind of friction. Do you use your orders to consolidate resources and bid at the Bazaar, or do you spend them moving a Legion and casting a dark ritual? Every choice is a sacrifice. This isn’t a game of “doing everything”; it’s a game of “doing the two things that won’t get you killed this turn.”

The Art of the Insult

Unlike Civilization, where diplomacy often feels like a secondary layer to the combat, diplomacy is the combat here. The “social engineering” aspect is handled through a system of diplomatic stances. To claim a rival’s territory, you might “Demand” a tribute. If they refuse, you gain a vendetta, allowing you to attack for a set number of turns to reclaim your honor.

This creates a fascinating Meta-game. You find yourself constantly probing your opponents’ psyche. Is the Archfiend to your north acting aggressive because they have a powerful hidden Artifact, or are they bluffing to keep you from noticing their weak economy? Trust is a non-existent currency. Even an alliance is merely a stay of execution, a temporary pact of convenience that will inevitably be shattered the moment one party sees a path to the throne.

The Asynchronous Loop

While the single-player “Chronicles” offer a decent onboarding experience, Solium Infernum is fundamentally designed for human interaction. The asynchronous mode is a gift for the “aging gamer” demographic. It fits into the cracks of a busy life—a turn over coffee, another during a lunch break. But this slow pace amplifies the tension. You have hours to second-guess your moves, to re-read the diplomatic logs, and to wonder why your “ally” just moved a Praetor toward your border. It’s a slow-burn horror story where you are both the protagonist and the villain.

The Steep Learning Curve

The onboarding friction is real. Despite League of Geeks’ best efforts with tutorials and a cleaner UI, the sheer density of systems—Rituals, Alchemy, Charisma, Prophecy, and Command—can be overwhelming. The AI, while competent in basic maneuvers, lacks the spiteful creativity of a human player. In single-player, the complex diplomatic dance can occasionally feel like a solo waltz. This is a game that demands you bring your own enemies to the table to truly shine.

Visuals & performance

League of Geeks has traded the original’s spreadsheet-heavy look for a striking painterly aesthetic. The Archfiends are rendered with grotesque elegance, and the map of Hell is a desaturated, haunting expanse that feels appropriately oppressive. The UI design is a significant upgrade, utilizing sleek icons and clear tooltips, though the volume of information on screen occasionally requires a bit of hunting. As a turn-based, largely 2D game of this scope, it is light on hardware demands by design.

Platform nuances

On Steam, the game is a natural fit for mouse and keyboard. The precision required to navigate the Bazaar and the map is well-served by a traditional setup. The game’s turn-based structure also makes it well suited to portable play, though the small text in some of the more information-dense menus is a strain on smaller screens. The integration with Steam notifications is crucial for the asynchronous mode, keeping players alert to their window to counter-insult a rival.

Final verdict

Solium Infernum is a rare breed of strategy game that understands that the most interesting part of any conflict isn’t the battle itself, but the reasons we give for fighting it. It is a cynical, beautiful, and deeply rewarding experience that rewards patience and punishes impulsivity. While the barrier to entry is high and the single-player AI falls short of its human counterparts, those who persevere will find a game of remarkable depth. In the pits of Hell, the greatest weapon isn’t a sword—it’s a well-crafted contract with a hidden sting.

Reviewed by the Rankeno Strategy & Sim Desk. Scores are out of 10; the overall score is the desk’s editorial judgement, informed by the four sub-scores above. How we review

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Store facts (last checked Oct 2026)

Price
$39.99
Store ratings
1,581

Quick facts

Developer
League of Geeks
Released
Feb 22, 2024
Platform
Steam
From
$39.99
Genres
Indie, Strategy
Metacritic
85

Questions about Solium Infernum

Is Solium Infernum worth it?

Solium Infernum is a rare breed of strategy game that understands that the most interesting part of any conflict isn't the battle itself, but the reasons we give for fighting it. Our editors scored Solium Infernum 8.4 out of 10, which puts it in our Great band.

Why does Solium Infernum score 8.4 out of 10?

With a score of 8.4 out of 10, Solium Infernum lands in our Great band. Innovation is its strongest category at 9.0 out of 10. Value is the weakest at 8.0.

What do our editors like most about Solium Infernum?

Deep, intricate political complexity. Asynchronous multiplayer is thoughtfully implemented.

What do our editors say is Solium Infernum's biggest weakness?

Steep learning curve for newcomers. AI can be predictable in high-level diplomacy.

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