Astro Protocol

Astro Protocol is high-stakes, turn-based 4X space strategy distilled into intense matches of about an hour. Lead one of six premade factions, or design your own, against an AI that plays to win. Randomized techs, anomalies, maps and victory conditions make every match unique.

Built for players who want tactical depth without the late-game slog, every match delivers a new strategic challenge against AI rivals that expand, court minor factions and attack on their own initiative.

Be prepared: space is unforgiving and victories must be earned.

Expand Your Empire Across the Galaxy

Establish your empire by constructing space stations and extending your network through planetary colonization.

Build stations to harvest resources from asteroids, gas giants, and stars. Improve their efficiency with refinery stations or by terraforming planets to support industry, research, or logistics. Every placement shapes the future of your empire.

Tactical One-Unit-Per-Tile Combat

Combat takes place on a one-unit-per-tile hex grid where positioning is everything. Each ship has a distinct role, attack profile, shields, armor, and abilities.

Assemble fleets, upgrade ships, and exploit enemy weaknesses to gain the upper hand against rival factions.

Research, Adapt, and Replay

Research new technologies across three branches to unlock ships, stations, terraforming options, and upgrades. Technology choices are randomized each match, forcing you to adapt rather than follow fixed build orders.

Choose from six playable factions with distinct mechanics and strategic strengths or build your own from the ground up. Combined with randomized maps, minor factions, technologies, anomalies, and victory conditions, every match presents a new strategic situation to navigate.

Explore anomalies scattered across the galaxy, each offering unpredictable rewards from abandoned vessels to powerful technologies that can reshape your plans.

Race for Victory

Each match is a race to complete new randomized victory conditions through expansion, combat or exploration. You can also win by exterminating your rivals.

Astro Protocol features a smart, assertive AI developed in close collaboration with Xilmi, known for AI overhauls of OpenXCOM and Remnants of the Precursors. Expect opponents that play to win and force you to adapt.

Replayability in Numbers

6 premade factions

97 traits to build custom factions

12 minor factions

26 ship types

12 planet types

100+ technologies

100+ anomalies

9 victory conditions

4 map generators