Screenshots
Watch trailer on Steam ↗Protocol Aegirum
Nacho Riquelme · Published by Nacho Riquelme
Last updated 28 Sept 2026
A turn-based tactical game in the style of chess, with roguelike elements, where you command a fleet in dynamic strategic battles to break humanity's cycle of defeat.
£1.09
£1.69Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, Strategy · 2025 · More under £5 games
Navigate dynamic strategic conflicts as you lead a fleet through tactical turns, aiming to disrupt the endless loop of human conflict. Experience Protocol Aegirum, an innovative blend of chess-like gameplay and roguelike challenges from developer Nacho Riquelme.
About this game
Protocol Aegirum blends chess-inspired strategic depth with the endless replayability of roguelikes. Command your fleet, adapt to shifting battlefields, and challenge an eternal cycle of tactical trials to overturn humanity’s fate.
In Protocol Aegirum, humanity is ensnared within an unending simulation, desperately searching for a commander who can break the algorithmic loop. Take command of your specialized fleet, with each ship designed after classic chess pieces, and engage in strategic, turn-based combat across procedurally generated sectors. As you progress, you'll encounter randomized doctrine nodes providing passive upgrades, influencing your fleet's evolution and refining your strategic approach.
Key Features:
Chess-Inspired Tactics: Each vessel mirrors a chess piece, requiring strategic positioning, precise maneuvers, and careful coordination.
Roguelike Replayability: Every attempt introduces fresh enemy configurations, randomized doctrines, and new sector layouts, ensuring unique tactical challenges each run.
Dynamic Battlefields: Face evolving sectors featuring distinct visual identities and tactical variables, demanding constant strategic adaptation.
Doctrine Nodes: Discover passive doctrines randomly during your runs, subtly shaping your strategic decisions.
Endless Strategic Loop: With no branching paths or narrative distractions, victory depends solely on your skill, adaptability, and tactical endurance.
Lead your fleet through the simulation. Adapt, optimize, and outmaneuver the endless cycle. Humanity’s survival hinges on your strategic mastery.
System Requirements
Will my PC run this? →Minimum
- OS *: Any reasonably modern Windows (7 SP1+)
- Processor: Yes, just something that survives protocol boot-up.
- Graphics: Something to render the void and a couple of ships (OpenGL 3.3+)
- Sound Card: Optional, but silence in space can be unsettling.
- Additional Notes: If your machine survived humanity’s extinction, it’ll probably run this.
