SCI-FI SPACE BATTLE ALPHA
Illustration of green and red PF-V2 Pulseframes fighting above an illuminated power-grid city beneath a planet.

POWER GRID / PERSISTENT WAR

Sci-Fi Space Battle

Enter the Games. Fly fast, cut enemy power branches and break the fortified base in tactical team battles.

Download the alpha Learn to play
DIRECTORY CHECKING PLAYERS ONLINE — DOWNLOADS AVAILABLE AVAILABLE SERVERS — PRIMARY REGION UK / LONDON

CURRENT RELEASE

Alpha downloads

ALPHA AVAILABLE

Sci-Fi Space Battle 0.1.8-hotfix.2 build 9a3650485156 is available to download.

Published 14/09/2026. Choose your computer’s build below.

macOS alpha notice: the current public build is not Developer ID signed or notarized. macOS may require an explicit user-approved first launch. Never bypass security prompts for an archive whose SHA-256 does not match this page.

Public downloads are the game only. Creator tools and dedicated servers are not offered here.

  1. Download & extractChoose your computer’s build and extract the ZIP to a fresh folder.
  2. Take your first flightStart a Local Game or play over LAN. The quick-start guide covers controls and objectives.
  3. Join the official gamesOnline play uses an invited Operator account. Manage your account, link your game and check the server directory.

Choose Windows or macOS. For most Macs, use the universal build; Intel- and Apple-silicon-only builds remain available as smaller manual choices.

Download Windows · 64-bit Windows 10/11, 64-bit 521521104 bytes · SHA-256 5a93846ee4be02e1f176b0701ac3b83af615a8e4745babfa47701744f784a071
Download macOS · Apple silicon Smaller build for Apple silicon only 279589152 bytes · SHA-256 65b8da82a6d03addb337a204afc8dbcd3d791d5e1d9f9f1f609139a9bfcdd147
Download macOS · Universal (Intel + Apple silicon) Recommended for most Macs 292447483 bytes · SHA-256 2b2668dccdce309fcee05d5b4d9f4f947a5f811ad5014495f9243febd6f3c5ae
Download macOS · Intel Smaller build for Intel Macs only 280031945 bytes · SHA-256 5c1b5247fbc1e87f264a2062bd038a42cfcf7dd68e7c05bd7fc0960cfac30ea1
Build & online compatibility
Build
sfsb-alpha-0.1.8-hotfix.2-9a3650485156-9a3650485156-6df13f7d
Online play
Protocol 19 · Use a matching server
Platforms
Windows · macOS

THE NEXT SORTIE

Step inside the Pulseframe.

About version 0.1.8-hotfix.2. Check the current release above before downloading.

01 / FLIGHT

A seat in the cockpit

Fly the angular PF-V2 Pulseframe in chase view or switch to its first-person cockpit. Live dash displays keep your ship’s condition in sight.

02 / COMBAT

Keep your sights on target

Refined LAN flight, clearer radar contacts and corrected moving muzzle effects make fast battles easier to read.

03 / ARENAS

Fight across the grid

Seven packaged arenas, refreshed hangars and towers, and smoother loading keep the next battle close.

Alpha 0.1.8-hotfix.2 gameplay notes Full changes & known limits
  • Returning from an online match to the title and starting Local Game now keeps the displayed arena and local collision world on the same map.
  • Online play waits behind the loading screen until the arena buildings, terrain and ship resources are ready. The server receives map readiness before granting possession, so you cannot enter a partially loaded arena.
  • Online steering responds to local input immediately and reconciles with the server. Position and collision remain server-authoritative; this is not full movement prediction and network latency can still affect those responses.
  • Official battle results use the simulation clock correctly, fixing rejected results after completed rounds. The homepage shows the server protocol and all downloads in one place.
  • The Handbook uses refreshed production renders of the PF-V2 Pulseframe and current equipment. Retired PF-V1 imagery is removed.
  • Official play now has a labelled, editable code field with a visible caret and Paste button. Open Account on the Community website, choose Create link code to create a one-time device code, then type or paste its eight characters into Device link code and choose Link profile. Party invite codes have their own Join a friend’s party screen.
  • Valid official-server connections could be rejected after linking your device. This hotfix corrects that server admission failure. Once the hotfix is available above, install it and choose Quick Play; an already linked profile does not need another device code.
  • Solo and party joins now show connection progress until your player and arena are ready. Cancel returns you safely to official play. If a connection fails, Try again requests a fresh connection; party membership is retained. Copy connection details provides diagnostics without your codes or credentials.
  • Music starts during initial arena loading and continues into the main menu. The loading screen remains responsive while content is prepared in the background.
  • The PF-V2 Pulseframe, first-person cockpit, seven packaged arenas, refined LAN flight and round-to-round map rotation from 0.1.8 remain included. Press V or Right Stick to cycle camera views.
  • Alpha 0.1.8-hotfix.2 retains protocol 19, compatibility identity sfsb-alpha-0.1.7-p18 and authenticated encrypted official-aead-v1 admission. Use matching hotfix builds for LAN play. Windows Community HTTPS uses native Windows Schannel.
  • Community and verified game downloads use public HTTPS. This hotfix retains the existing public official-server endpoint and network access rules. Players do not need Tailscale; it is reserved for deployment administration. Check the current release above: preview notes do not mean the server hotfix is live yet.
  • Known alpha limits: Physical iMac/Windows playtesting remains necessary, including party joins and reconnects. Windows is supplied as a portable ZIP; the signed installer remains planned for 0.1.9. Public downloads are game-only; SFSB Forge and dedicated servers remain internal; the macOS package is not Developer ID signed or notarized; and NAT relay or player-hosted internet games are not offered.

THE GAMES

War ended. Disagreement did not.

The Intelligence ended scarcity and made war impossible.

It could not make humanity agree.

When the Crown and the Roots cannot decide what comes next, the Games decide.

The Crown seeks one shared direction.

The Roots protect many possible futures.

The Games are harmless simulations. Their agreed outcomes are not.

Open the player Handbook

OFFICIAL MATCH RESULTS

Alpha leaderboard

LOADING
Loading accepted official results…

Alpha standings use preview service points and are not permanent ranked history.

THE GAME

Own the grid. Starve the base.

Third-person ship combat with plasma cannons, targeted rockets, territory control and an energy network that changes every fight.

01Discuss on the Board 02Find an Operator 03Manage your account

SERVER DIRECTORY

Official server status

STATUS ONLY
Loading server directory…

Server availability is shown here. Choose an available server from inside the game. A temporarily empty directory does not remove the public downloads. Check back here before joining an official game.