Astro Protocol
Null Vector Studios · 2026 · Turn-Based Strategy, Turn-Based Tactics, 4X, Grand Strategy, Space
PC
Very Positive94% · 65
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About Astro Protocol
Astro Protocol is a high-stakes, turn-based 4X space strategy game distilled into intense one-hour matches.Built for players who want tactical depth without mid-game bloat, every session delivers a new strategic challenge against AI opponents who don't just participate but play to win. Lead one of the six cosmic factions for galactic dominance, but be prepared: the space is unforgivable 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 distinct roles, attack profiles, shields, armor, and abilities.
- Assemble fleets, upgrade ships, and exploit enemy weaknesses to gain the upper hand against rival factions and a capable AI that actively competes for victory.
Research, Adapt, and Replay
- Research new technologies across three branches to unlock ships, stations, terraforming options, and upgrades. Technology choices are randomized each run, forcing you to adapt rather than follow fixed build orders.
- Choose from six playable factions with distinct mechanics and strategic strengths. 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 toward victory under changing conditions. Win by completing randomized victory objectives through expansion, combat, or exploration or by destroying your rivals.
- Astro Protocol features a smart, assertive AI developed in close collaboration with Xilmi, known for AI overhauls for OpenXCOM and Remnants of the Precursors. Expect opponents that play to win and force you to adapt.
Replayability in Numbers
- 6 playable factions
- 8 minor factions
- 22 ship types
- 12 planet types
- 100+ technologies
- 100+ anomalies
- 9 victory conditions
- 4 map generators
DLC & expansions
🎁 Complete the collection
Base game + 1 of 1 DLC at today's best prices.
$14.98
to own everything
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
EDIT, July/13/26: Developer took my feedback into account and is now testing a feature on the beta branch to custom select faction colors. --- Finally, a MoO-like that doesn't require tedious min/maxing economy tricks to play well. I never was able to get into the MoO series or Remnants, but this game plays fast while retaining enough strategy to stay interesting. I'm not finding the AI to be as brilliant as advertised, but its competent enough. For the price point, more than acceptable. There are issues for colorblind players. I find it hard to see the red faction's borders, and hard to tell the yellow and green faction's ships apart. Framerate seems locked to 60 FPS.4 found this helpful
I've played all the 4x's this is by far the best short duration 4x I've ever played!1 found this helpful
Enjoyable short form 4x with some interesting ideas about infrastructure and technology that I haven't seen elsewhere.1 found this helpful
Played the demo, decided to buy the full game. It really delivers its promises. There is a game called "10 minutes space strategy". Compared to it, this one should be called "30 minutes space strategy". But this game is much more varied. The only downside is bad readability of the map.1 found this helpful
For a coffee break 1x it is fine. 1x = exterminate with no real other options. There is a tiny miniscule amount of exploring (anomalies but they are tricky), and an even tinier amount of exploitation, and expansion. Obviously given no real obstacles to expansion but there is no real place to expand to. So as I said, a coffee break game (20mins should do it) with no depth. Is it worth the price? That's for you to decide. I am not happy with the cost vs value but I am also not unhappy with it. 5 hours for <$9 is OK. Not thrilling but not terrible. I just wish it was not so darned tiny (Largest is extremely small)
The UI scaling option does absolutely nothing. Nothing! This makes the game worthless on the Deck, unless you're willing to go blind from squinting.
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